Never complain and never explain.
Things do not happen. Things are made to happen.
It's always too early to quit.
If you think you can do it, you can.
To know oneself, one should assert oneself.
Only the educated are free.
Problems are not stop signs, they are guidelines.
The secret of getting ahead is getting started.
Well done is better than well said.
If you've got a talent, protect it.
Freedom is the recognition of necessity.
All history has been a history of class struggles between dominated classes at various stages of social development.