I can, therefore I am.

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

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

It's always too early to quit.

The secret of getting ahead is getting started.

Go for it now. The future is promised to no one.

Be gentle to all and stern with yourself.

Always desire to learn something useful.

Do not weep do not wax indignant. Understand.