Observation, reason, and experiment make up what we call the scientific method.

If an apple was magnified to the size of the Earth, then the atoms in the apple would be approximately the size of the original apple.

But there is nothing in biology yet found that indicates the inevitability of death.

What would happen if we could arrange the atoms one by one the way we want them?

Religion is a culture of faith; science is a culture of doubt.

I don't know what's the matter with people: they don't learn by understanding, they learn by some other way — by rote or something. Their knowledge is so fragile!

No one really understands quantum mechanics.