If you do not design the future, someone or something else will design it for you.

Some people drift along like a cork on a river, feeling that they cannot do anything except drift, moment to moment. This is an attitude of mind. Everyone can be constructive even in tiny ways.

Creativity is a great motivator because it mades people interested in what they are doing.

A person who knows all the answers, has an opinion on everything, has a certainty backed up by rational argument, has very little possibility of further progress. Such a person is unlikely to walk away from a discussion with anything more than a reaffirmation of how right he or she has been all along.

Don't criticise a hypothesis, come up with a better one.

It's always amazed me how little attention philosophers, psychologists, or anyone else actually has paid to humor.

Once a new idea springs into existence, it cannot be unthought. There is a sense of immortality in a new idea.