You know you love someone when you cannot put into words how they make you feel.

Jealousy is not a barometer by which the depth of love can be read. It merely records the degree of the lover's insecurity.

Ninety-nine percent of the time humans have lived on this planet we've lived in tribes, groups of 12 to 36 people. Only during times of war, or what we have now, which is the psychological equivalent of war, does the nuclear family prevail, because it's the most mobile unit that can ensure the survival of the species. But for the full flowering of the human spirit we need groups, tribes.

For art to be reality, the whole sensuous being must be caught up in the experience.

Sometimes, instead of helping people to advance, a discovery or an invention holds them back.

I've been married three times - and each time I married the right person.

Manners, really good ones, make it possible to live with almost anyone, gracefully and pleasantly.