Confucious, Analects

8.6 Master Zeng said, "Consider someone who can both be entrusted with the care of a young orphan and charged with the command of a hundred- square-li-state, and who can be confronted with the great challenges without being shaken. Is this not the gentleman? Yes, this is the gentlemen."

8.7 Master Zeng said, "A scholar official must be strong and resolute for his burden is heavy and his way (dao) is long, He takes up Goodness as his own personal burden -- is it not heavy? His way ends only with death --is it not long?"

8.17 The Master said, "Learn as if you will never catch up, and as if you feared losing what you have already attained."