Know what you know and know that you don't know what you don't know — that is the characteristic of one who knows.
The man who moves a mountain begins by carrying away small stones.
If you make a mistake and do not correct it, this is called a mistake.
In a country well governed, poverty is something to be ashamed of. In a country badly governed, wealth is something to be ashamed of.
An angry man is full of poison.
To go beyond is as wrong as to fall short.