What is most needed for learning is a humble mind.
If you think in terms of a year, plant a seed; if in terms of ten years, plant trees; if in terms of 100 years, teach the people.
Unify your attention. Do not listen with your ears, but with your mind. Do not listen with your mind but with your essence.
Excess and deficiency are equally at fault.
Fine words and an insinuating appearance are seldom associated with true virtue.
When you are ignorant about something, to know that you are ignorant about it - that is knowledge.