A mind free from cares and fears is needed to experience true happiness.
需要一颗没有烦恼和恐惧的心才能体验真正的幸福。
To find a truth that is true to me, to find an idea for which I am willing to live and die.
人民是我的同胞,万物是我的伙伴。
The proper study of psychology is not what the mind is, but what the mind does.