不用圆规和曲尺，就不能画出方形和圆形。比喻做事要遵循一定的法则。

数学是将复杂转化为清晰的艺术。

"I always try to find the humanity in every character, no matter how flawed they may be."

The deeper the pain, the more profound the art.

The worst of all deceptions is self-deception.

Don't be afraid of failure. Failure is the necessary path to success.

自由是绝对必要的。