数学之美在于它的简洁与深度。

The mind is nature's masterpiece of adaptation.

平等不仅是一种道德要求，更是一种经济必需。

That is what learning is. You suddenly understand something you've understood all your life, but in a new way.

"The best stories are the ones that stay with you long after you've finished reading."

耐心是投资者最重要的品质。