Never complain and never explain.
If you think you can do it, you can.
Always desire to learn something useful.
The most effective way to do it, is to do it.
Without hard work, nothing grows but weeds.
Who seeks shall find.
To be a good loser is to learn how to win.
The wise does at once what the fool does at last.
Be kind whenever possible. It is always possible.
Problems are not stop signs, they are guidelines.
Imagination is as vital to any advance in science as learning and precision are essential for starting points.