The aim of art is to represent not the outward appearance of things, but their inward significance.

I find my greatest pleasure, and so my reward, in the work that precedes what the world calls success.

Although personally I am quite content with existing explosives, I feel we must not stand in the path of improvement. 

Science is a beautiful gift to humanity; we should not distort it.

Thou wilt find rest from vain fancies if thou doest every act in life as though it were thy last.

There is no man living that can not do more than he thinks he can. 

It gives me great pleasure indeed to see the stubbornness of an incorrigible nonconformist warmly acclaimed.

Goons thrive on the silence of the masses.

One might think that the money value of an invention constitutes its reward to the man who loves his work. But... I continue to find my greatest pleasure, and so my reward, in the work that precedes what the world calls success.

Fear is pain arising from the anticipation of evil.

We don't know a millionth of one percent about anything.

As different streams having different sources all mingle their waters in the sea, so different tendencies, various though they appear, crooked or straight, all lead to God.