爱不过是使用积极强化的另一个名字？或者反过来。

化学是一门具有创造自己研究对象的非凡能力的科学。

每一个挑战都是学习和成长的机会。

There is an awful lot you can tell about a person by their shoes. Where they're going. Where they've been.

The greatest happiness of the thinking man is to have fathomed the fathomable, and to quietly revere the unfathomable.

"The essence of literature is to capture the fleeting moments of human existence and give them permanence through words."