We can judge our progress by the courage of our questions and the depth of our answers, our willingness to embrace what is true rather than what feels good.

We are like butterflies who flutter for a day and think it is forever.

Who are we, if not measured by our impact on others?

An atheist is someone who is certain that God does not exist, someone who has compelling evidence against the existence of God. I know of no such compelling evidence.

Books break the shackles of time, proof that humans can work magic.

Cleverly designed experiments are the key.

Science is a way of thinking much more than it is a body of knowledge.