The great extension of our experience in recent years has brought light to the insufficiency of our simple mechanical conceptions and, as a consequence, has shaken the foundation on which the customary interpretation of observation was based.

We must be clear that when it comes to atoms, language can be used only as in poetry. The poet, too, is not nearly so concerned with describing facts as with c…

Isolated material particles are abstractions, their properties being definable and observable only through their interaction with other systems.

What is it that we humans depend on? We depend on our words... Our task is to communicate experience and ideas to others. We must strive continually to extend …

Aristotelian , Euclidian [line, space, length] and Newtonian [speed of light] systems... have a few unjustified infinities too many: when such an infinity is i…

As for Adler, I was much impressed by a personal experience. Once, in 1919, I reported to him a case which to me did not seem particularly Adlerian, but which …

'Have the climate models been successful in predicting anything? They, of course, predict substantial global warming. This is not surprising given the expresse…