Never be satisfied with where you are; always strive for better.
不是知识,而是学习的行为;不是占有,而是到达的过程,才能带来最大的快乐。
新观点总是被怀疑和通常反对,原因只是因为它们尚未变得普遍。
No man, for any considerable period, can wear one face to himself and another to the multitude, without finally getting bewildered as to which may be the true.