我这一代人最伟大的发现是，人类可以通过改变心态来改变他们的生活。
Act as if what you do makes a difference. It does.
"The great secret that all old people share is that you really haven't changed in seventy or eighty years. Your body changes, but you don't change at all."
The surest way to tame a prisoner is to let him believe he’s free.
The mind is a dynamic system of processes.
奶牛养殖既是一门艺术也是一门科学——尊重两者对于成功至关重要。
The task of the teacher is to lead the student from the known to the unknown.