I am convinced that material things can contribute a lot to making one's life pleasant, but, basically, if you do not have very good friends and relatives who matter to you, life will be really empty and sad and material things cease to be important.

As children we recognized that we belonged to an unusual, even exceptional, family, but the effect was different on each of us.

A museum has to renew its collection to be alive, but that does not mean we give on important old works.

My grandfather, along with Carnegie, was a pioneer in philanthropy, which my father then practiced on a very large scale.

The negative impact of population growth on all of our planetary ecosystems is becoming appallingly evident.

If necessity is the mother of invention, discontent is the father of progress.

MoMA is doubling its space, and I decided to raise the money for it.