Books have led some to learning and others to madness.
True, we love life, not because we are used to living, but because we are used to loving. There is always some madness in love, but there is also always some reason in madness.
All cities are mad: but the madness is gallant. All cities are beautiful: but the beauty is grim.
But mathematics is the sister, as well as the servant, of the arts and is touched by the same madness and genius.
The courage of the poet is to keep ajar the door that leads into madness.
Science has not yet taught us if madness is or is not the sublimity of the intelligence.
I find myself hoping a total end of all the unhappy divisions of mankind by party-spirit, which at best is but the madness of many for the gain of a few.
What is madness but nobility of soul at odds with circumstance.
Jealousy is bred in doubts. When those doubts change into certainties, then the passion either ceases or turns absolute madness.
Jealousy lives upon doubts. It becomes madness or ceases entirely as soon as we pass from doubt to certainty.
Afflicted by love's madness all are blind.
It is madness to attempt to hold. In the first place the troops cannot do it and in the second place if they do not retreat they will be destroyed. I repeat that this order be rescinded or that you find someone else.
Sanity calms, but madness is more interesting.
With the introduction of agriculture mankind entered upon a long period of meanness, misery, and madness, from which they are only now being freed by the beneficent operation of the machine.
Optimism is the madness of insisting that all is well when we are miserable.
Anger is a momentary madness, so control your passion or it will control you.
Drunkenness is nothing but voluntary madness.
Nothing is so wretched or foolish as to anticipate misfortunes. What madness is it to be expecting evil before it comes.
There is no great genius without some touch of madness.