The few of understanding, vision rare, Who veiled not from the herd their hearts, but tried, Poor generous fools, to lay their feelings bare, Them have men always burnt and crucified.

To make something you have to be something.

The greatest piece of folly is that every man thinks himself compelled to hand down what people think they have known.

One spares old people just as one spares children.

Enjoy what you can, endure what you must.

One always has time enough, if one will apply it well.

Experiments are mediators between nature and idea.