Well done is better than well said.
If you think you can do it, you can.
If you're going through hell, keep going.
Never complain and never explain.
The dog that trots about finds a bone.
If you can dream it, you can do it.
It's always too early to quit.
The secret of getting ahead is getting started.
Either you run the day or the day runs you.
Leap, and the net will appear.
If global cooling will come soon - scientists will lose trust.