True leadership means making tough decisions today for a better tomorrow.

要想成功，你必须愿意失败。

Small changes in the environment can have big effects on behavior.

译文：每天都要纠正自己的过错。如果哪天没有发现过失，那就会自以为是；如果每天都觉得无过错，那就会寸步难进。天下聪明俊秀的人才不少，他们之所以不去努力地培养德行，扩大事业，是因为受了得过且过的思想影响，耽误终生。