All for me, one for all.

人人为我，我为人人。

To think is to see.

思考就是明白。

Time is life.

时间就是生命。

One man, no man.

个人力量，微不足道。

Study while you study, play while you play.

学习时学习，娱乐时娱乐。

Honesty is the lifeblood of life, is the foundation of all values.

诚实是人生的命脉，是一切价值的根基。

Wasting time is a great sin.

浪费时间是一桩大罪过。

Mount Tai is not a base, learning is not blowing.

泰山不是垒的，学问不是吹的。

Only with hard work can we achieve great success.

只有通过努力工作，我们才能取得伟大的成功。

Believe is power. Honesty will give you to win more benefits than corruption.

信念就是力量。诚实会给你带来比腐败更多的好处。

这些格言既简单易懂，又富含深刻的道理，适合四年级学生学习和理解。希望这些建议对你有所帮助!