Knowledge rests not upon truth alone, but upon error also.
Since you alone are responsible for your thoughts, only you can change them.
All of humanity's problems stem from man's inability to sit quietly in a room alone
With every experience, you alone are painting your own canvas, thought by thought, choice by choice.
Do not wait for leaders; do it alone, person to person.
I, and I alone, am responsible for everything I think and feel.
Muddy water is best cleared by leaving it alone.
Never miss an opportunity to make others happy, even if you have to leave them alone in order to do it.
Laugh alone and the world thinks you're an idiot.