The nature of man is evil; what is good in him is artificial.
Sacrifices are concerned with the feelings of devotion and longing.
If knowledge and foresight are too penetrating and deep, unify them with ease and sincerity.
Man's nature is evil; goodness is the result of conscious activity.
Human nature is what Heaven supplies.
If the quickness of the mind and the fluency of the tongue are too punctilious and sharp, moderate them in your activity and rest.