In teaching there should be no distinction of classes.有教無類。
When it comes to benevolence, one need not give precedence even to his teacher.當仁，不讓於師。
Is it not pleasant to learn with a constant perseveranceand application?學而時習之，不亦說乎?
Learn as if you could not reach your object, and were always fearing also lest you should lose it.學如不及，猶恐失之。
Learning without thought is labourlost; thought without learning is perilous.學而不思則罔，思而不學則殆。
If a man keeps cherishing his old knowledge, so as continually to be acquiring new, he may be a teacher of others.溫故而知新，可以為師矣。
He was of an active nature and yet fond of learning, and he was not ashamed to ask and learn of his inferiors.敏而好學，不恥下問。
In a hamlet of ten families, there may be found one honourable and sincere as I am, but not so fond of learning.十室之邑，必有忠信，如丘者焉，不如丘之好學也。
They who know the truth are not equal to those who love it, and they who love it are not equal to those who delight in it.知之者，不如好之者，好之者，不如樂之者。
The silent treasuring up of knowledge; learning without satiety; and instructing others without being wearied -- which one of these things belongs to me?默而識之，學而不厭，誨人不倦，何有於我哉。
I am not one who was born in the possession of knowledge; I am one who is fond of antiquity, and earnest in seeking it there.我非生而知之者，好古，敏以求之者也。
When I walk along with two others, they may serve me as my teachers. I will select their good qualities and follow them, their bad qualities and avoid them.三人行，必有我師焉。擇其善者而從之，其不善者而改之。