Quality is not an act, it is a habit.
The secret of getting ahead is getting started.
Be gentle to all and stern with yourself.
Problems are not stop signs, they are guidelines.
Do not weep do not wax indignant. Understand.
By failing to prepare, you are preparing to fail.
After a storm comes a calm.
If you think you can do it, you can.
To know oneself, one should assert oneself.
Well done is better than well said.
I disapprove of what you say, but I will defend to the death your right to say it.