1.
Painting a tiger's skin is easy, but not so the bones. A man's face one can know, but not his heart.
画虎画皮难画骨, 知人知面不知心。
2.
When you paint a dragon, you paint his skin; it is difficult to paint the Bones. When you know a man, you know his face But not his heart
画龙画皮难画骨,知人知面不知心
3.
as you can draw a tiger's skin but not its bones, so you can know a man's face but not his heart.
画龙画虎难画骨, 知人知面不知心。
4.
Understanding, Timing and Ordering ──On Basic Approaches of Education;
知心、知时与知序──试论教育的基本方法
5.
The face is no index to the heart.
面孔不是心灵的标志。（或：知人知面不知心。）
6.
A man may have acquaintances all over the world, but very few true friends.
相交满天下, 知心能几人。
7.
Friends like you come along once in a life time.
相识满天下，知心唯一人。
8.
stereoscopic perception
立体知觉(心理学)
9.
intellectual egocentrism
知识自我中心 知识自我中心
10.
The heart knows its own bitterness.
[谚]心中的苦楚自已知道。
11.
I don't know if I can be nice,
我不知道能否心平气和，
12.
He was such a mess that he did not know what to do.
他心乱得不知如何是好。
13.
He knew that faith is wholesome.
他知道信仰能护人心身。
14.
He is a proverb for carelessness.
他的粗心是人所共知的。
15.
Want of care does us more damage than want of knowledge .
粗心之害大于无知。
16.
He is truly rich who desires nothing and he is truly poor who covets all .
知足者富，贪心者穷。
17.
the designs of the villain are all too clear
司马昭之心,路人皆知
18.
as distance tests a horse's strength, so time reveals a person's heart.
路遥知马力，日久见人心。