Science is a marathon, not a sprint.

Your best response to an insult is “You’re probably right.” Often they are.

Change will not come if we wait for some other person or some other time. We are the ones we've been waiting for. We are the change that we seek.

The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion.

The only place where success comes before work is in the dictionary.