Just because life signifies not bare passive existence (supposing there is such a thing), but a way of acting, environment or medium signifies what enters into this activity as a sustaining or frustrating condition.

Knowledge is no longer an immobile solid; it has been liquefied. it is actively moving in all the currents of society itself

The origin of thinking is some perplexity, confusion or doubt.

Men have gone on to build up vast intellectual schemes, philosophies, and theologies, to prove that ideals are not real as ideals but as antecedently existing actualities. They have failed to see that in converting moral realities into matters of intellectual assent they have evinced lack of moral faith.

Of all affairs, communication is the most wonderful.

The real process of education should be the process of learning to think through the application of real problems.

As some species die out, forms better adapted to utilize the obstacles against which they struggled in vain come into being.