One can give a really unbiased opinion only about things that do not interest one

The only beautiful things are the things that do not concern us.

Every impulse we strangle will only poison us.

The mark of all good art is not that the thing done is done exactly or finely, for machinery may do as much, but that it is worked out with the head and the workman's heart.

You will always be fond of me. I represent to you all the sins you have never had the courage to commit.

In England, an inventor is regarded almost as a crazy man, and in too many instances, invention ends in disappointment and poverty. In America, an inventor is honoured, help is forthcoming, and the exercise of ingenuity, the application of science to the work of man, is there the shortest road to wealth.