Every breakthrough starts with a question.
Every man has his secret sorrows which the world knows not; and often times we call a man cold when he is only sad.
The person who tries to live alone will not succeed as a human being. His heart withers if it does not answer another heart. His mind shrinks away if he hears only the echoes of his own thoughts and finds no other inspiration.
The pursuit of knowledge is a journey without end, and each discovery is a step into the unknown.