Nothing is too wonderful to be true if it be consistent with the laws of nature. - Michael Faraday

It is right that we should stand by and act on our principles; but not right to hold them in obstinate blindness, or retain them when proved to be erroneous.

Наиболее подходящий для нас предмет — это не тот, который лучше всех по виду, а который лучше всех на деле

I was at first almost frightened when I saw such mathematical force made to bear upon the subject, and then wondered to see that the subject stood it so well.