在数学中，提出问题的艺术必须比解决问题更有价值。

译文：鸟的羽毛尚未丰满，就不能展翅高飞。

"In science, the credit goes to the man who convinces the world, not to the man to whom the idea first occurs."

If you do not tell the truth about yourself you cannot tell it about other people.

I can resist everything except temptation.

The pursuit of knowledge is the most noble of human endeavors.