A thought that sometimes makes me hazy: Am I - or are the others crazy?

I'm more interested in the future than in the past, because the future is where I intend to live.

The heart says yes, but the mind says no.

Don't become a seeker of success. Become a person of value.

Marvellous, what ideas the young people have these days. But I don't believe a word of it.

If you feed your mind as often as you feed your stomach, then you'll never have to worry about feeding your stomach or a roof over your head or clothes on your back.

Gradually the conviction gained recognition that all knowledge about things is exclusively a working-over of the raw material furnished by the senses. ... Galileo and Hume first upheld this principle with full clarity and decisiveness.