To study and not think is a waste. To think and not study is dangerous.
學而不思則罔,思而不學則殆。
Original text (Chinese)
Notes from Wikiquote
Book II, Chapter XV.
Original text (Chinese)
The superior man understands what is right; the inferior man understands what will sell.
The superior man loves his soul; the inferior man loves his property.
Quote text and notes from Wikiquote: Confucius (page history), available under CC BY-SA 4.0. Source quality and labels are our own summary of what Wikiquote records.