When an evil-doer, seeing you practise goodness, comes and maliciously insults you, you should patiently endure it and not feel angry with him, for the evil-doer is insulting himself by trying to insult you.
If you know something hurtful and not true, don't say it. If you know something hurtful and true, don't say it. If you know something helpful but not true, don't say it. If you know something helpful and true, find the right time to say it.
Let the wise guard their thoughts, which are difficult to perceive, extremely subtle, and wander at will. Thought which is well guarded is the bearer of happiness.