The demands that a great man makes are on himself; those of a petty man are upon others.
An angry man is full of poison.
If an urn lacks the characteristics of an urn, how can we call it an urn?
If you want to change the world, first change your heart.
To learn without thinking is labour in vain, to think without learning is desolation.
To put the world in order, we must first put the nation in order; to put the nation in order, we must first put the family in order; to put the family in order; we must first cultivate our personal life; we must first set our hearts right.