The discipline of suffering, of great suffering- do you not know that only this discipline has created all enhancements of man so far? That tension of the soul in unhappiness which cultivates its strength, its shudders face to face with great ruin, its inventiveness and courage in enduring, preserving, interpreting, and exploiting suffering, and whatever has been granted to it of profundity, secret, mask, spirit, cunning, greatness- was it not granted to it through suffering, through the discipline of great suffering?
At most, the greatest persons are but great wens, and excrescences; men of wit and delightful conversation, but as morals for ornament, except they be so incorporated into the body of the world that they contribute something to the sustentation of the whole.
But 'midst the crowd, the hum, the shock of men, To hear, to see, to feel, and to possess, And roam along, the world's tired denizen, With none who bless us, none whom we can bless.
Don't think about why you question, simply don't stop questioning. Don't worry about what you can't answer, and don't try to explain what you can't know. Curiosity is its own reason. Aren't you in awe when you contemplate the mysteries of eternity, of life, of the marvelous structure behind reality? And this is the miracle of the human mind - to use its constructions, concepts, and formulas as tools to explain what man sees, feels and touches. Try to comprehend a little more each day. Have holy curiosity.
Shower on him every blessing, drown him in a sea of happiness, give him economic prosperity such that he should have nothing else to do but sleep, eat cakes, and busy himself with the continuation of the species, and even then, out of sheer ingratitude, sheer spite, man would play you some nasty trick.