If you think you can do it, you can.
Without hard work, nothing grows but weeds.
By failing to prepare, you are preparing to fail.
To know oneself, one should assert oneself.
It's always too early to quit.
What you do today can improve all your tomorrows.
Be thine own palace, or the world's thy jail.
I can, therefore I am.
Always desire to learn something useful.
Be kind whenever possible. It is always possible.
Be able to be alone. Lose not the advantage of solitude, and the society of thyself.