Life is earnest, art is gay.

We can never replace a friend. When a man is fortunate enough to have several, he finds they are all different. No one has a double in friendship.

It is only through the morning gate of the beautiful that you can penetrate into the realm of knowledge. That which we feel here as beauty we shall one day know as truth.

As inclination changes, thus ebbs and flows the unstable tide of public judgment.

The lamp of genius burns quicker than the lamp of life.

Let him that sows the serpent's teeth not hope to reap a joyous harvest. Every crime has, in the moment of its perpetration, its own avenging angel,--dark misgivings at the inmost heart.

Even in a righteous cause force is a fearful thing.