Nothing is worth more than this day.

Love is an ideal thing, marriage a real thing; a confusion of the real with the ideal never goes unpunished.

Every day look at a beautiful picture, read a beautiful poem, listen to some beautiful music, and if possible, say some reasonable thing.

There is no permanence in doubt; it incites the mind to closer inquiry and experiment, from which, if rightly managed, certainty proceeds, and in this alone can man find thorough satisfaction.

There is no better deliverance from the world than through art, and a man can form no surer bond with it.

Most man only care for science so far as they get a living by it, and that they worship even error when it affords them a subsistence.

I could never have known so well how paltry men are, and how little they care for really high aims, if I had not tested them by my scientific researches. Thus I saw that most men only care for science so far as they get a living by it, and that they worship even error when it affords them a subsistence.