The demand to be loved is the greatest of all arrogant presumptions.

I'm not a speech, I'm a melody.

I believe in the power of positivity.

投资者应警惕高费用和复杂的产品。

The essential function of art is moral. But a passionate, implicit morality, not didactic. A morality which changes the blood, rather than the mind.

The essence of mathematics lies in its freedom.

生活的艺术在于知道何时坚持，何时放手。