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.
The characteristic of scientific progress is our knowing that we did not know.
The possibility of a scientific treatment of history means a wider experience, a greater maturity of practical reason, and finally a fuller realization of certain basic ideas regarding the nature of life and time.
No honest writer today can possibly avoid being influenced by Freud through his pioneering work into the Unconscious and by the influence of those discoveries on the scientific, philosophic, and artistic work of his contemporaries: but not, by any means, necessarily through Freud’s own writing.
Perceptual reality is different for different species. In certain species it is a mode of observation, so what we call scientific fact is actually not ultimate truth, it is perceptual experience, and it’s a mode of observation.
But the scientific importance of a change in knowledge of fact consists precisely in j its having consequences for a system of theory.
Traditional scientific method has always been at the very best, 20 – 20 hindsight. It’s good for seeing where you’ve been. It’s good for testing the truth of what you think you know, but it can’t tell you where you ought to go.
Our scientific power has outrun our spiritual power. We have guided missiles and misguided men.
The judge said I was a menace to society because I had put crime on a scientific basis.
For a scientific theory of him to be possible, man, including his habits of valuation, has to be taken as determined by causal laws, as an instance and part of nature.