Problems are not stop signs, they are guidelines.
Things do not happen. Things are made to happen.
The secret of getting ahead is getting started.
If you've got a talent, protect it.
Always desire to learn something useful.
I can, therefore I am.
It's always too early to quit.
Expect problems and eat them for breakfast.
Wherever you are - be all there.
Either you run the day or the day runs you.
Science is a self-sufficient activity.
The thing about science is that it's an accurate picture of the world.