It's always too early to quit.
To know oneself, one should assert oneself.
Be gentle to all and stern with yourself.
After a storm comes a calm.
Leap, and the net will appear.
Well done is better than well said.
If you think you can do it, you can.
Problems are not stop signs, they are guidelines.
The dog that trots about finds a bone.
If you're going through hell, keep going.
They don't like thinking in medical school. They memorize - that's all they want you to do. You must not think.