By the mid-17th century, telescopes had improved enough to make visible the seasonally growing and shrinking polar ice caps on Mars, and features such as Syrtis Major, a dark patch thought to be a shallow sea.

Professionalism in art has this difficulty: To be professional is to be dependable, to be dependable is to be predictable, and predictability is esthetically boring - an anti-virtue in a field where we hope to be astonished and startled and at some deep level refreshed.

I don't write about too many male businessmen, and I'm not apt to write about too many female businessmen.

For male and female alike, the bodies of the other sex are messages signaling what we must do, they are glowing signifiers of our own necessities.

Medicine is a science of uncertainty and an art of probability.

Pure phenomenology claims to be the science of pure phenomena. This concept of the phenomenon, which was developed under various names as early as the eighteenth century without being clarified, is what we shall have to deal with first of all.

In the sick room, ten cents' worth of human understanding equals ten dollars' worth of medical science.

When psychical phenomena have been as much investigated as physical, love will also receive its cumatology - that is, its science of waves. We shall follow the curves of the emotions through the ages, their movement of rise and fall, the oppositions and side-influences by which they have been determined.