“Clouds are not spheres, mountains are not cones, coastlines are not circles, and bark is not smooth, nor does lightning travel in a straight line.”

“I found myself in the position of that child in a story who noticed a bit of string and - out of curiosity - pulled on it to discover that it was just the tip of a very long and increasingly thick string...and kept bringing out wonders beyond reckoning”

“Epicurus said you should live for pleasure - adding that nothing brings more pleasure than a little sun and a glass of water. It is on this principle that our conjugal existence has rested for three years, devoted to making love, reading, eating excellent meals, spending a few days in a nice hotel by the sea, visiting out friends (not very many, all without children), going to concerts and movies, sleeping, cultivating our garden.”

“Distance in a straight line has no mystery. The mystery is in the sphere.”

“When a man in a forest thinks he is going forward in a straight line, in reality he is going in a circle, I did my best to go in a circle, hoping to go in a straight line.”

“Reality is made up of circles but we see straight lines.”

“The political spectrum is not a straight, bi-polar line. It's a circle.”