The only way to change behavior is through manipulation of reinforcement contingencies.
However difficult life may seem, there is always something you can do and succeed at.
A novel is a mirror walking along a main road.
Life is a tragedy for those who feel, and a comedy for those who think.
比開始某事并失敗更糟糕的是根本不開始。
最好的水果來自最好的實踐；絕不能在標準上妥協(xié)。
"Leadership is about making others better as a result of your presence and making sure that impact lasts in your absence."
你對生活了解得越多，你就越能成為一個好演員。
It seems to me that if you or I must choose between two courses of thought or action, we should remember our dying and try so to live that our death brings no pleasure to the world.