Wonder is the feeling of a philosopher, and philosophy begins in wonder.
The important thing is not to stop questioning. Curiosity has its own reason for existence. One cannot help but be in awe when he contemplates the mysteries of eternity, of life, of the marvelous structure of reality. It is enough if one tries merely to comprehend a little of this mystery each day. Never lose a holy curiosity. ... Don't stop to marvel.
The world will hardly admit of an excuse for a man leaving a coast unexplored he has once discovered.