You Never Fail Until You Stop Trying.

The Fear Of Death Is The Most Unjustified Of All Fears, For There's No Risk Of Accident For Someone Who's Dead.

Only Six Men In The World Know About Relativity. I Am Not One Of Them. When I Ask Them To Explain, They Confused Me.

The Truth Of A Theory Is In Your Mind, Not In Your Eyes.

Dostoevsky Gives Me More Than Any Scientist, More Than Gauss.

In Every True Searcher Of Nature There Is A Kind Of Religious Reverence, For He Finds It Impossible To Imagine That He Is The First To Have Thought Out The Exceedingly Delicate Threads That Connect His Perceptions