Sensuality often hastens the growth of love so much that the roots remain weak and are easily torn up. Beyond Good and Evil

Nuclear energy is incomparably greater than the molecular energy which we use today.... What is lacking is the match to set the bonfire alight. Never Give In!

Pride is an established conviction of one's own paramount worth in some particular respect, while vanity is the desire of rousing such a conviction in others, and it is generally accompanied by the secret hope of ultimately coming to the same conviction oneself. Pride works from within; it is the direct appreciation of oneself. Vanity is the desire to arrive at this appreciation indirectly, from without. Parerga and Paralipomena

You're better off not giving the small things more time than they deserve. Book IV