Faithfulness and sincerity first of all.
Those who break down the dikes will themselves be drowned in the inundation.
Thought, unassisted by learning, is dangerous.
Without knowing the force of words, it is impossible to know more.
Only the supremely wise and the ignorant do not alter.
What Heaven has conferred is called The Nature; an accordance with this nature is called The Path of duty; the regulation of this path is called Instruction. The path may not be left for an instant. If it could be left, it would not be the path.