It's always too early to quit.

If you think you can do it, you can.

Begin to be now what you will be hereafter.

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

If you've got a talent, protect it.

Do not weep do not wax indignant. Understand.

Always desire to learn something useful.

If you're going through hell, keep going.

Well done is better than well said.