Creative thinking will improve as we relate the new fact to the old and all facts to each other.

Without initiation into the scientific spirit one is not in possession of the best tools which humanity has so far devised for effectively directed reflection. One in that case not merely conducts inquiry and learning without the use of the best instruments, but fails to understand the full meaning of knowledge.

most notable distinction between living and inanimate beings is that the former maintain themselves by renewal.

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

Philosophy recovers itself when it ceases to be a device for dealing with the problems of philosophers and becomes a method, cultivated by philosophers, for dealing with the problems of men.

All genuine education comes about through experience.

It science involves an intelligent and persistent endeavor to revise current beliefs so as to weed out what is erroneous, to add to their accuracy, and, above all, to give them such shape that the dependencies of the various facts upon one another may be as obvious as possible.