As to judging our own time, and thereby gaining some basis for a judgment of future possibilities, we are doubtless not only too close to it to appraise it but too much formed by it and enclosed within it to do so.

There is a great interest in comparative religion and a desire to understand faiths other than our own and even to experiment with exotic cults.

Men who are scandalized at the lack of freedom in Russia do not ask themselves how real is liberty among the poor, the weak, and the ignorant in capitalist society.

We speculate as to what is in store for us. But we not only undergo events, we in part cause them or at least influence their course. We have not only to study them but to act.

However, it required some years before the scientific community in general accepted that flexibility and disorder are very relevant molecular properties also in other systems.

I think it's important that science just doesn't stay within narrow boundaries.

Legal discrimination between the sexes is, in almost every instance, founded on outmoded views of society and the pre-scientific beliefs about psychology and physiology. It is time to sweep away these relics of the past and set further generations free of them.

To settle space, we will have to develop the ability to harvest and utilize the resources of the solar system, such as ores, ice, and the rays of the sun itself at levels of efficiency that will transform our relationship to our own planet Earth.