We must not measure greatness from the mansion down, but from the manger up. The test of our progress is not whether we add more to the abundance of those who have much; it is whether we provide enough for those who have too little.

We are dying from civilisation and its discontents; we have invented the machine, and now the machine is reinventing us.

We are dying from civilisation and its discontents; we have invented the machine, but we have not invented a sufficient control of the machine; and worst of all, we have not invented any adequate philosophy of the machine.

The mind has not merely made a discovery of external fact; it has altered its own nature. It has become capable of rising above the present and the particular to the conception of law, of growth, of progress.

We are dying from civilisation and its discontents; we have invented the machine, and now the machine is bent on inventing us.

We are dying from civilisation and its discontents; we have invented the machine, and now the machine is in the process of reinventing us.

The one thing we ask is that the man who is not thinking should get out of the way of the man who is. The world wants to move forward, and if you're not moving with it, you're holding it back.

Science is a way of thinking much more than it is a body of knowledge. Its goal is not to arrive at immutable truths but to develop progressively better approximations of reality.