Though someone could start out with good intentions, the Ring would eventually corrupt them. And that is why Gandalf can't touch it. He is afraid that if he did, it would corrupt him and make him just as bad as Sauron since Sauron put so much of himself and his evil into the One Ring.
In the movie, Gandalf goes to pick up the ring off the floor after Bilbo drops it. He gets within about a centimetre of touching it, then gets the vision of the eye and pulls his hand away immediately without ever touching it.
Gandalf was scared of this beast because he knew how powerful it was since it was a Maia like himself, but it was purely evil.
When, despairing of his ability to destroy the Ring, Frodo offers it to Gandalf, the wizard immediately refuses because he recognizes the danger: "the way of the Ring to my heart is through pity, pity for weakness and the desire of strength to do good." Because the Ring is evil, the wizard knows that any attempt to ...
Even if Gandalf had more traditional fantasy powers, he would not be able to constantly cast spells. As shown with Saruman, using magic is very taxing and expends great energy, so it cannot be done freely.
He's a pretty insanely powerful being, especially so when he returns as Gandalf the White. If he were permitted to use his full power in the fight in question, he may well win. But using only the power he's allowed most of the time that we see, I think it would most likely go to Dumbledore.
Gandalf's natural (angelic) strength was diminished because he was bound to a human form by Eru and sent as an emissary to undo the evil which Sauron had wrought. Gandalf was only given enough strength to accomplish his task, which was to rally the Free Peoples against Sauron and bring about his ruin.
In the book, Bilbo not only attends the Council, but volunteers to take the Ring to Mordor and destroy it. He is fully aware that it is the One.
Even if one of the Eagles had carried Frodo or Gandalf on their back with the purpose of entering the mountain, Sauron's spies would be able to spot them at just about any moment, and attack. There's no hiding when you're an Eagle of the Valar and are flying straight into the mouth of evil.
Gandalf was carried to Caras Galadhon in Lothlórien, where he was healed, given a new staff, and clothed in white, and thus became Gandalf the White.
It seems likely to me that Legolas has not encountered a Balrog before in his life, yet when the fellowship first sees the Balrog in Moria he is able to immediately identify it.
Gandalf was simply afraid the Balrog would kill the Fellowship and capture the Ring. He wasn't concerned about his own personal safety, just that the quest would fail.
In truth, however, the Balrog and Gandalf were once both of the same ilk. Like Gandalf, the Balrogs began as primordial spirits known as Maia, who had existed since before time began and took no physical form.
Prior to the publication of The Silmarillion, Sauron's origins and true identity were unclear to those without full access to Tolkien's notes. In early editions of The Guide to Middle Earth, Sauron is described as "probably of the Eldar elves".
Gandalf also would have wanted to make sure. It would've been a wasted effort if he and Bilbo had gone to all the trouble to destroy the Ring and it turned out not to be the One Ring. So instead of acting right away, Gandalf waited.
Saruman's real intention was to permit Sauron to build up his strength, so that the One Ring would reveal itself. He later found that Sauron had more knowledge of the possible location of the One Ring than he expected, and in TA 2941, Saruman finally agreed to attack Dol Guldur.
There are a few reasons why Gimli would have been unaware of Balin's fate: a messenger could have been killed by orcs on the way to spread the news, or they could have been trapped within the mines for some time before they were killed.
However, the reason the Ringbearer did not fly to Mordor by Eagle is fairly simple: the purpose of the Fellowship of the Ring and the linchpin of the entire strategy decided on in Rivendell was to destroy the Ring in a mission of secrecy.
They are adept at throwing stones. For the most part, they cannot grow beards, but a few of the race of Stoor can. Their feet are covered with curly hair (usually brown, as is the hair on their heads) and have leathery soles, so hobbits hardly ever wear shoes.
Gandalf knew about Sauron in the back of his head all the time in the beginning of The Fellowship of the Ring but his surprised behavior was due to the fact the Bilbo kept the ring all this time and lay quiet in keeping it.
Despite many losses through destroying Smaug and the following Battle of Five Armies, the Dwarves eventually freed the Lonely Mountain and settled there once more. With Thorin and his nephews passing during the battle, the Dwarven lord Dain Ironfoot was the next in line for king.
Gandalf 'felt' that he was bolder than the other hobbits and he decided to have Bilbo join Thorin and his company. Gandalf (and many others) regarded Bilbo and Frodo as the best hobbits in whole Middle-earth. Gandalf never explicitly said why he had chosen poor Bilbo to join him and the dwarves in their expedition.
' The only LotR characters who are about the same age as Gandalf are Sauron, Morgoth, and Eru Ilúvatar. In The Silmarillion, all the Ainur are roughly the same age as Gandalf. In a very real way, Gandalf is older than time itself. This is impressive, but not really unique in Tolkien's world.
However, Gandalf's Counter-Spell is shown to have limits, and he can't dispel any magic more powerful than his own.
There are officially five members: Saruman, Gandalf, Radagast, Alatar, and Pallando.