It's always too early to quit.
The wise does at once what the fool does at last.
To know oneself, one should assert oneself.
By failing to prepare, you are preparing to fail.
After a storm comes a calm.
If you're going through hell, keep going.
The secret of getting ahead is getting started.
Problems are not stop signs, they are guidelines.
The dog that trots about finds a bone.
Never complain and never explain.
The distance between insanity and genius is measured only by success.