It's always too early to quit.
Problems are not stop signs, they are guidelines.
Be gentle to all and stern with yourself.
By failing to prepare, you are preparing to fail.
Either you run the day or the day runs you.
You never know what motivates you.
Know or listen to those who know.
Well done is better than well said.
If you think you can do it, you can.
Always desire to learn something useful.
What makes a river so restful to people is that it doesn't have any doubt - it is sure to get where it is going, and it doesn't want to go anywhere else.