Be thine own palace, or the world's thy jail.
Always desire to learn something useful.
It's always too early to quit.
If you can dream it, you can do it.
Go for it now. The future is promised to no one.
If you think you can do it, you can.
I can, therefore I am.
Begin to be now what you will be hereafter.
Be gentle to all and stern with yourself.
If you've got a talent, protect it.
The doubt of an earnest, thoughtful, patient and laborious mind is worthy of respect. In such doubt may be found indeed more faith than in half the creeds.