真正的监狱不是由铁条制成的，而是由恐惧制成的。

理论计算机科学中的挑战不仅仅是解决问题，而是理解为什么它们难以解决。

The creative process must be explored as the expression of normal people in the act of actualizing themselves.

I think the most important thing in life is to love and be loved in return.