You can't convince a believer of anything; for their belief is not based on evidence, it's based on a deep seated need to believe

we make our world significant by the courage of our questions and the depth of our answers

You could just as well say that an agnostic is a deeply religious person with at least a rudimentary knowledge of human fallibility.

I'm only a four-dimensional creature. Haven't got a clue how to visualise infinity. Even Einstein hadn't. I know because I asked him

An atheist has to know a lot more than I know. An atheist is someone who knows there is no god. By some definitions atheism is very stupid.

An organism at war with itself is doomed.

Every star may be a sun to someone.