The genius-in work and in deed-is necessarily a squanderer: the fact that he spends himself constitutes his greatness.
Friedrich NietzscheScience rushes headlong, without selectivity, without "taste," at whatever is knowable, in the blind desire to know all at any cost.
Friedrich NietzscheFor such is man: a Theological Dogma might be refuted to him a thousand times - provided however, that he had need of it, he would again and again accept it as true. Belief is always most desired, most pressingly needed where there is a lack of will. Fanaticism is the sole "volitional strength" to which the weak and irresolute can be excited, as a sort of hypnotising of the entire sensory-intellectual system.
Friedrich Nietzsche