凡事總是由難而易。

all things are difficult before they are easy.

all work and no play makes jack a dull boy.

只會用功不玩耍，聰明孩子也變傻。

a man becomes learned by asking questions.

不恥下問才能有學問。

a man can do no more than he can.

凡事都應量力而行。

a man cannot spin and reel at the same time.

一心不能二用。

a man is known by his friends.

什麼人交什麼朋友。