Never complain and never explain.
Well done is better than well said.
Wherever you are - be all there.
If you think you can do it, you can.
Begin to be now what you will be hereafter.
What you do today can improve all your tomorrows.
Leap, and the net will appear.
The secret of getting ahead is getting started.
Problems are not stop signs, they are guidelines.
The wise does at once what the fool does at last.
Imagination, the traitor of the mind, has taken my solitude and slain it.
Cruelty is a part of nature, at least of human nature, but it is the one thing that seems unnatural to us.