Things do not happen. Things are made to happen.
Either you run the day or the day runs you.
Well done is better than well said.
Leap, and the net will appear.
Be kind whenever possible. It is always possible.
It's always too early to quit.
The wise does at once what the fool does at last.
To know oneself, one should assert oneself.
If you're going through hell, keep going.
Without hard work, nothing grows but weeds.
Most of man's problems upon this planet, in the long history of the race, have been met and solved either partially or as a whole by experiment based on common sense and carried out with courage.