I can, therefore I am.

The dog that trots about finds a bone.

What you do today can improve all your tomorrows.

Without hard work, nothing grows but weeds.

It's always too early to quit.

Be thine own palace, or the world's thy jail.

By failing to prepare, you are preparing to fail.

Leap, and the net will appear.

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