Lord Kelvin

Heavier-than-air flying machines are impossible.

In science there is only physics; all the rest is stamp collecting.

Science is bound, by the everlasting vow of honour, to face fearlessly every problem which can be fairly presented to it.

I just had an idea that went right over my head.

Strictly speaking, the idea of a scientific poem is probably as nonsensical as that of a poetic science.

Science is only truly consistent with an atheistic worldview with regards to the claimed miracles of the gods of Judaism, Christianity and Islam.