It is better to be a human being dissatisfied than a pig satisfied; better to be Socrates dissatisfied than a fool satisfied. And if the fool, or the pig, are of a different opinion, it is because they only know their own side of the question.

Money is a machine for doing quickly and commodiously what would be done, though less quickly and commodiously, without it.

Almost all rich veins of original and striking speculation have been opened by systematic half-thinkers.

Though it is only in a very imperfect state of the world's arrangements that anyone can best serve the happiness of others by the absolute sacrifice of his own, yet, so long as the world is in that imperfect state, I fully acknowledge that the readiness to make such a sacrifice is the highest virtue which can be found in man.

I have learned to seek my happiness by limiting my desires, rather than in attempting to satisfy them.

I had learnt from experience that many false opinions may be exchanged for true ones, without in the least altering the habits of mind of which false opinions are made.

It is better to be Socrates dissatisfied than a pig satisfied.