Quality is not an act, it is a habit.
Never complain and never explain.
Know or listen to those who know.
If you think you can do it, you can.
After a storm comes a calm.
By failing to prepare, you are preparing to fail.
It's always too early to quit.
If you're going through hell, keep going.
The dog that trots about finds a bone.
Things do not happen. Things are made to happen.
Diversity in the world is a basic characteristic of human society, and also the key condition for a lively and dynamic world as we see today.