Not all poisonous juices are burning or bitter nor is everything which is burning and bitter poisonous.

Animals are good to think with.

Scientific knowledge advances haltingly and is stimulated by contention and doubt.

I can't help thinking that science would be more appealing if it had no practical use.

For everything is history: What was said yesterday is history, what was said a minute ago is history. But, above all, one is led to misjudge the present, because only the study of historical development permits the weighing and evaluation of the interrelationships among the components of the present-day society.

All the essentials of humanity's artistic treasures can be found in New York.

Since music is the only language with the contradictory attributes of being intelligible and untranslatable, the musical creator is a being comparable to the gods, and music itself the supreme mystery of the science of man.