The rash assertion that "God made man in His own image" is ticking like a time bomb at the foundation of many faiths.

It was one thing to have guessed it, another to have had that guess confirmed beyond possibility of refutation.

Science can destroy religion by ignoring it as well as by disproving its tenets. No one ever demonstrated, so far as I am aware, the nonexistence of Zeus or Thor, but they have few followers now.

Some things have eternal value, and compassion is one of them. I hope we never lose that. Compassion for humans as well as animals.

A well-stocked mind is safe from boredom.

Astronomy, as nothing else can do, teaches men humility.

Judge me by my deeds, though they are few, rather than my words, though they are many.