Psychology is a science, and teaching is an art; and sciences never generate arts directly out of themselves.

"Language is the house of being."

The beauty of mathematics lies in its ability to simplify complex ideas into elegant structures.

变化是不可避免的，但成长是可选的。

"The things we admire in men, kindness and generosity, openness, honesty, understanding and feeling, are the concomitants of failure in our system. And those traits we detest, sharpness, greed, acquisitiveness, meanness, egotism and self-interest, are the traits of success."