It's always too early to quit.

To know oneself, one should assert oneself.

Either you run the day or the day runs you.

The wise does at once what the fool does at last.

I can, therefore I am.

The dog that trots about finds a bone.

If you think you can do it, you can.

Things do not happen. Things are made to happen.

Quality is not an act, it is a habit.