It is not God's will merely that we should be happy, but that we should make ourselves happy

Have patience awhile; slanders are not long-lived. Truth is the child of time; erelong she shall appear to vindicate thee.

Procrastination is hardly more evil than grasping impatience.

I have no knowledge of myself as I am, but merely as I appear to myself.

Of all the arts poetry (which owes its origin almost entirely to genius and will least be guided by precept or example) maintains the first rank.

Two things strike me dumb: the infinite starry heavens, and the sense of right and wrong in man.

The question is not so much whether there is life on Mars as whether it will continue to be possible to live on Earth