Astronomy is older than physics. In fact, it got physics started by showing the beautiful simplicity of the motion of the stars and planets, the understanding of which was the beginning of physics.

Things on a small scale behave nothing like a large scale at all. That’s what makes physics hard, and very interesting.

Another most interesting change in the ideas and philosophy of science brought about by quantum mechanics is this: it is not possible to predict exactly what will happen in any circumstance.

A leopard print shirt or dress is a classic look. Nice.

We have found it of paramount importance that in order to progress we must recognize the ignorance and leave room for doubt. Scientific knowledge is a body of statements of varying degrees of certainty–some most unsure, some nearly sure, none absolutely certain.

What we call scientific knowledge today is a body of statements of varying degrees of certainty.