If you know that things are bound to happen whatever you do, then you may feel free to give up the fight against them.

The initial stage, the act of conceiving or inventing a theory, seems to me neither to call for logical analysis nor to be susceptible of it.

Piecemeal social engineering resembles physical engineering in regarding the ends as beyond the province of technology.

In so far as a scientific statement speaks about reality, it must be falsifiable; and in so far as it is not falsifiable, it does not speak about reality.

Nature consists of facts and of regularities, and is in itself neither moral nor immoral. It is we who impose our standards upon nature, and who in this way introduce morals into the natural world, in spite the fact that we are part of this world. We are products of nature, but nature has made us together with our power of altering the world, of foreseeing and of planning for the future, and of making far-reaching decisions for which we are morally responsible. Yet, responsibility, decisions, enter the world of nature only with us

Science is perhaps the only human activity in which errors are systematically criticized and, in time, corrected.

It is impossible to speak in such a way that you cannot be misunderstood.