It is impossible to have bad taste, but many people have none at all. - Georg Christoph Lichtenberg

One has to do something new in order to see something new.

The most heated defenders of a science, who cannot endure the slightest sneer at it, are commonly those who have not made very much progress in it and are secretly aware of this defect.

It makes a great difference by what path we come to a knowledge of certain things. If we begin in our youth with metaphysics and religion we can easily proceed along a series of rational conclusions that will lead us to the immortality of the soul. Not every other path will lead to this, at least not quite so easily.