There is always some madness in love. But there is also always some reason in madness.

When love is not madness it is not love.

Books have led some to learning and others to madness.

A leader is one who out of madness or goodness volunteers to take upon himself the woe of the people. There are few men so foolish hence the erratic quality of leadership in the world.

Jealousy lives upon doubts. It becomes madness or ceases entirely as soon as we pass from doubt to certainty.

Science has not yet taught us if madness is or is not the sublimity of the intelligence.

The first draught serveth for health the second for pleasure the third for shame and the fourth for madness.

Success can create more madness than happiness.

The great proof of madness is the disproportion of one's designs to one's means.

There is no great genius without some touch of madness.