Beware of little expenses. A small leak will sink a great ship.

I conceive that the great part of the miseries of mankind are brought upon them by false estimates they have made of the value of things.

A great empire, like a great cake, is most easily diminished at the edges.

I'm a great believer that any tool that enhances communication has profound effects in terms of how people can learn from each other, and how they can achieve the kind of freedoms that they're interested in.

The wise man does not expose himself needlessly to danger, since there are few things for which he cares sufficiently but he is willing, in great crises, to give even his life - knowing that under certain conditions it is not worthwhile to live.