Ian McKellen's powerful wizard is a source of guidance, counsel, and knowledge for the Fellowship in The Lord of the Rings, making for a lot of wise Gandalf quotes. In many ways, Gandalf ...

changed slightly from the source material's "You cannot pass" — stands out as one of the best Lord of the Rings quotes out there. Of course, that's not the only thing Gandalf says to the Balrog ...

However, Gandalf certainly isn't the only wizard in Tolkien's canon. In total, five Istari come to Middle-earth. Joining Gandalf are Saruman the White, Radagast the Brown, and two Blue Wizards.