Man is distinguished from all other creatures by the faculty of laughter.
Anxiety is the dizziness of freedom.
So act that your principle of action might safely be made a law for the whole world.
It is not much for its beauty that makes a claim upon men's hearts, as for that subtle something, that quality of air that emanates from old trees, that so wonderfully changes and renews a weary spirit.
The problem is never how to get new, innovative thoughts into your mind, but how to get old ones out. Every mind is a building filled with archaic furniture. Clean out a corner of your mind and creativity will instantly fill it.
Don't ever take a fence down until you know the reason it was put up.
When someone does something good, applaud! You will make two people happy.