Whatever you do will be insignificant, but it is very important that you do it.

An eye for an eye will only make the whole world blind.

(When asked what he thought of Western civilization): 'I think it would be a good idea.

It's the action, not the fruit of the action, that's important. You have to do the right thing. It may not be in your power, may not be in your time, that there'll be any fruit. But that doesn't mean you stop doing the right thing. You may never know what results come from your action. But if you do nothing, there will be no result.

It is what you read when you don't have to that determines what you will be when you can't help it

Anyone can find the switch after the lights are on.