To know oneself, one should assert oneself.
By failing to prepare, you are preparing to fail.
If you think you can do it, you can.
If you've got a talent, protect it.
Be gentle to all and stern with yourself.
Be kind whenever possible. It is always possible.
If you're going through hell, keep going.
Always desire to learn something useful.
Leap, and the net will appear.
It's always too early to quit.
Old age adds to the respect due to virtue, but it takes nothing from the contempt inspired by vice it whitens only the hair.