It is not the critic who counts; not the man who points out how the strong man stumbles, or where the doer of deeds could have done them better. 

The credit belongs to the man who is actually in the arena, whose face is marred by dust and sweat and blood; who strives valiantly; who errs, who comes short again and again, because there is no effort without error and shortcoming; but who does actually strive to do the deeds; who knows great enthusiasms, the great devotions; who spends himself in a worthy cause; who at the best knows in the end the triumph of high achievement, and who at the worst, if he fails, at least fails while daring greatly, so that his place shall never be with those cold and timid souls who neither know victory nor defeat.

by Theodore Roosevelt

批评家不作数，指出强者如何摔跤，实干者哪里可以做得更好的评论家也不作数。

荣誉属于真正拼搏于竞技场的人，他的脸布满了斑驳的尘土和血汗交织的痕迹，他英勇的拼搏着，犯着错误，一次又一次地袒露着缺陷，因为从不存在完美无瑕的成功！那脚踏实地埋头苦干的人，那拥有极致的热情，极致的奉献的人，那投身于崇高事业的人，那最终拥有胜利的欢欣的人，即算他失败，他也是在无畏的拼搏中失败。因而，他才不会与那些从没尝过成功与胜利的滋味的冷漠怯懦的灵魂沦为一类。

by 西奥多·罗斯福