Art is long, life short, judgment difficult, opportunity transient. To act is easy, to think is hard; to act according to our thought is troublesome.

To act is easy, to think is hard; to act according to our thought is troublesome.

True observers of nature, although they may think differently, will still agree that everything that is, everything that is observable as a phenomenon, can only exhibit itself in one of two ways. It is either a primal polarity that is able to unify, or it is a primal unity that is able to divide. The operation of nature consists of splitting the united or uniting the divided; this is the eternal movement of systole and diastole of the heartbeat, the inhalation and exhalation of the world in which we live, act, and exist.

What must the English and French think of the language of our philosophers when we Germans do not understand it ourselves?

To act is easy; to think is hard.

Happy contractedness of youth, nay, of mankind in general, that they think neither of the high nor the deep, of the true nor the false, but only of what is suited to their own conceptions.

Because everyone uses language to talk, everyone thinks he can talk about language.

Superstition belongs to the essence of mankind and takes refuge, when one thinks one has suppressed it completely, in the strangest nooks and crannies; once it is safely ensconced there, it suddenly reappears.

The rainbow mirrors human aims and action. Think, and more clearly wilt thou grasp it, seeing Life is but light in many-hued reflection.