Reliable scientific knowledge is value free and has no moral or ethical value. Science tells us how the world is. ... Dangers and ethical issue arise only when science is applied as technology.

It is not birth, marriage, or death, but gastrulation which is truly the most important time in your life.

Depression is sadness gone wrong

I strongly hold that, if an idea fits with common sense, then scientifically it is almost certain to be false.

There is zero evidence for god.

The image of the disinterested, dispassionate scientist is no less false than that of the mad scientist who is willing to destroy the world for knowledge.

The physics of motion provides one of the clearest examples of the counter-intuitive and unexpected nature of science.

I regard it as ethically unacceptable and impractical to censor any aspect of trying to understand the nature of our world.

Those who waste time eventually become wasted

The Moon is the light of the night.

No one has ever overdosed on encouragement.

Even the 'Today' programme involves a balance between the worthy-but-heavy items with the worthless-but-entertainingly-light ones.

Everybody works but the vacant lot

My secret to having a happy relationship is having a sense of humour and giving one another space: your own space.

The inner child runs rampant. They're just smaller, that's all.

Godly fear, faith, and humility is the true threefold cord that can’t easily be broken (see Ecclesiastes 4:12).

You know what I would like to do: make a film with actors standing in empty space so that the spectator would have to imagine the background of the characters.

I've always been worried about people who are willing to work for nothing. Sometimes that's all you get from them, nothing.