To know oneself, one should assert oneself.
Expect problems and eat them for breakfast.
Quality is not an act, it is a habit.
By failing to prepare, you are preparing to fail.
Well done is better than well said.
If you're going through hell, keep going.
It's always too early to quit.
The secret of getting ahead is getting started.
Problems are not stop signs, they are guidelines.
Always desire to learn something useful.
The role of the teacher is to create the conditions for invention rather than provide ready-made knowledge.