The only people who cannot change are the most wise and the most stupid.
A lack of patience in trifling matters might lead to the disruption of great project.
Give a man a fish, feed home for a day. Teach a man to fish, feed for a lifetime.
When you serve your mother and father it is okay to try to correct them once in a while. But if you see that they are not going to listen to you, keep your respect for them and don't distance yourself from them. Work without complaining.
Never give a sword to a man who can't dance.
To understand yourself is the key to wisdom.