Never complain and never explain.
Things do not happen. Things are made to happen.
Without hard work, nothing grows but weeds.
The secret of getting ahead is getting started.
Well done is better than well said.
Be kind whenever possible. It is always possible.
If you think you can do it, you can.
Wherever you are - be all there.
Know or listen to those who know.
Be thine own palace, or the world's thy jail.
It frequently happens that two persons, reasoning right on a mechanical subject, think alike and invent the same thing without any communication with each other.