If you can't explain it simply, you don't understand it well enough.
One person with passion is better than forty people merely interested.
Every time you do a good deed you shine the light a little farther into the dark. And the thing is, when you're gone that light is going to keep shining on, pushing the shadows back.
I disapprove of what you say, but I will defend to the death your right to say it.
It is amazing what you can accomplish if you do not care who gets the credit.