每种心理状态都有其存在的目的;要理解它,我们必须询问它在更广泛的行为系统中发挥什么功能。
To find yourself,think for yourself.
The more we learn about the true nature of animals, the more we realize how much we have in common with them.
The true delight is in the finding out rather than in the knowing.
I don’t create for the future. I create for now.