Without hard work, nothing grows but weeds.
The most effective way to do it, is to do it.
I can, therefore I am.
Leap, and the net will appear.
Do not weep do not wax indignant. Understand.
It's always too early to quit.
What you do today can improve all your tomorrows.
Problems are not stop signs, they are guidelines.
If you think you can do it, you can.
Always desire to learn something useful.
Imagination is as vital to any advance in science as learning and precision are essential for starting points.