Logic, like whiskey, loses its beneficial effect when taken in too large quantities.
— Lord Dunsany

Parliament will train you to talk; and above all things to hear, with patience, unlimited quantities of foolish talk.
— Thomas Carlyle

I always get back to the question, is it really necessary that men should consume so much of their bodily and mental energies in the machinery of civilized life? The world seems to me to do much of its toil for that which is not in any sense bread. Again, does not the latent feeling that much of their striving is to no purpose tend to infuse large quantities of sham into men's work?
— William Allingham

The difficulties in the study of the infinite arise because we attempt, with our finite minds, to discuss the infinite, assigning to it those properties which we give to the finite and limited; but this...is wrong, for we cannot speak of infinite quantities as being the one greater or less than or equal to another.
— Galileo Galilei

Pride, like laudanum and other poisonous medicines, is beneficial in small, though injurious in large quantities. No man who is not pleased with himself, even in a personal sense, can please others.
— Frederick Saunders