"By and large, mothers and housewives are the only workers who do not have regular time off. They are the great vacationless class."

"To give without any reward, or any notice, has a special quality of its own."

"The only real security is not in owning or possessing, not in demanding or expecting, not in hoping, even. Security in a relationship lies neither in looking back to what it was, nor forward to what it might be, but living in the present and accepting it as it is now."

"Don't wish me happiness - I don't expect to be happy it's gotten beyond that, somehow. Wish me courage and strength and a sense of humor - I will need them all."

"Once a disease has entered the body, all parts which are healthy must fight it: not one alone, but all. Because a disease might mean their common death. Nature knows this and Nature attacks the disease with whatever help she can muster."

"I am not a yachting person, by nature, but I have just enough experience on the sea under sail to feel a certain nostalgia for it when I see a big white racing yacht heeled over at cruising speed on the ocean, and I can still tie a mean bowline knot on just about anything in less than 10 seconds."

"The real cure for our environmental problems is to understand that our job is to salvage Mother Nature. We are facing a formidable enemy in this field. It is the hunters... and to convince them to leave their guns on the wall is going to be very difficult."

"For me, science is already fantastical enough. Unlocking the secrets of nature with fundamental physics or cosmology or astrobiology leads you into a wonderland compared with which beliefs in things like alien abductions pale into insignificance."