The Master said, “Learning without thought is labor lost; thought without learning is perilous.” The Master said, “The study of strange doctrines is … - Confucius

Learning without thought is labour lost; thought without learning is perilous.

When you know a thing, to hold that you know it; and when you do not know a thing, to allow that you do not know it — this is knowledge.

Looking at small advantages prevents great affairs from being accomplished.

"The philosopher Zeng said, "I daily examine myself on three points: whether, in transacting business for others, I may have been not faithful; whether, in intercourse with friends, I may have been not sincere; whether I may have not mastered and practiced the instructions of my teacher.

君子求诸己，小人求诸人。

(A gentleman blames himself while a common man blames others.)