(philosophy, Marxism) dialectical materialism

antisocial force, group which do not follow law and social manners

(literally) know the other side and yourself, a hundred battles will not be perilous

flee, escape / conceal, hide (from the outside world) / Alternative spelling of 佚 (itsu): lost, unknown; indulge; disappear / great, superb, outstanding

delicate

one for all, all for one

to each his own; different strokes for different folks; there's no accounting for taste

chickens come home to roost, so you should be prepared for your curse to come back to you. Also said to admonish someone against cursing another person casually.

three-legged race / (idiomatic) cooperating and working together to accomplish a task

so many men, so many minds