心理学唯一有效的数据是受过训练的观察者的报告。
"We are all in the gutter, but some of us are looking at the stars."
The key to success is not just hard work, but working smart and being adaptable to change.
The only limit to our realization of tomorrow is our doubts of today.
In science, the credit goes to the man who convinces the world, not to the man to whom the idea first occurs.
The poet is a liar who always speaks the truth.