Silence is not the absence of sound, but the presence of an unspoken truth.
The freedom then of man, and liberty of acting according to his own will, is grounded on his having reason, which is able to instruct him in that law he is to govern himself by, and make him know how far he is left to the freedom of his own will.
The best time to plant a tree was 20 years ago; the second best time is now.
心理学家必须是一个公正的观察者。
The truth is rarely pure and never simple.