Psychology should be the science of mental life, both of its phenomena and of their conditions.
心理学应该是关于心理生活的科学，包括其现象及其条件。
I don't have to prove anything to anyone. There's nothing to prove.
The psychologist must avoid all forms of mental physics.
The best leaders are those who can see the potential in people and help them realize it.
唯一真正的发现之旅不在于寻找新的风景，而在于拥有新的眼光。
All living creatures are engendered from eggs.