博学之,审问之,慎思之,明辨之,笃行之.有弗学,学之弗能,弗措也；有弗问,问之弗知,弗措也；有弗思,思之弗得,弗措也；有弗辨,辨之弗明,弗措也；有弗行,行之弗笃,弗措也.人一能之,已百之,人十能之,已千之.果能此道矣,虽...