Virtue can have naught to do with ease. . . . It craves a steep and thorny path.

Obstinacy and contention are common qualities, most appearing in, and best becoming, a mean and illiterate soul.

Marriage has, for its share, usefulness, justice, honour, and constancy; a stale but more durable pleasure. Love is grounded on pleasure alone, and it is indeed more gratifying to the senses, keener and more acute; a pleasure stirred and kept alive by difficulties. There must be a sting and a smart in it. It ceases to be love if it has no shafts and no fire.

It is a sign of contraction of the mind when it is content, or of weariness.

Oh, what a valiant faculty is hope, that in a mortal subject, and in a moment, makes nothing of usurping infinity, immensity, eternity, and of supplying its masters indigence, at its pleasure, with all things he can imagine or desire!

If to take up books were to take them in, and if to see them were to consider them, and to run through them were to grasp them, I should be wrong to make myself out quite as ignorant as I say I am.

Whenever a new finding is reported to the world people say - It is probably not true. Later on, when the reliability of a new finding has been fully confirmed, people say - OK, it may be true but it has no real significance. At last, when even the significance of the finding is obvious to everybody, people say - Well, it might have some significance, but the idea is not new.