71、要成就一件大事业，必须从小事做起。——列宁

To make a big career, we must start small.

72、好动与不满足是进步的第一必需品。——爱迪生

Active and discontent is the first necessity of progress.

73、不要慨叹生活的痛苦！慨叹是弱者。——高尔基

Don't lament the pain of life! Lament is the weak.