"People of art should never get married and have children, because it's a selfish experience"

"A leader is best when people barely know he exists, when his work is done, his aim fulfilled, they will say: we did it ourselves"

"Buildings should serve people, not the other way around"

"Borders? I have never seen one. But I have heard they exist in the minds of some people"

"Sarcasm: the last refuge of modest and chaste-souled people when the privacy of their soul is coarsely and intrusively invaded"

"People with many interests live, not only longest, but happiest"

"The art of medicine consists in amusing the patient while nature cures the disease"

"Raising children is an incredibly hard and risky business in which no cumulative wisdom is gained: each generation repeats the mistakes the previous one made"

"Advertising is the art of making whole lies out of half truths"

"Children begin by loving their parents; after a time they judge them; rarely, if ever, do they forgive them"

"If children grew up according to early indications, we should have nothing but geniuses"