Do not fear to be eccentric in opinion, for every opinion now accepted was once eccentric.
Find more pleasure in intelligent dissent than in passive agreement, for, if you value intelligence as you should, the former implies a deeper agreement than the latter.
从理智的异议中寻找乐趣，因为只有尊重理智，才能比消极的服从带来更深刻的一致。
父亲们最根本的缺点，在于想要自己的孩子为自己争光。
The fundamental defect of fathers is that they want their children to be a credit to them.
切勿觉得一定会成功而放弃思考。
Never try to discourage thinking, for you are sure to succeed.