Baldassare Castiglione quotes:

Practise in everything a certain nonchalance that shall conceal design and show that what is done and said is done without effort and almost without thought.

Outward beauty is a true sign of inner goodness. This loveliness, indeed, is impressed upon the body in varying degrees as a token by which the soul can be recognized for what it is, just as with trees the beauty of the blossom testifies to the goodness of the fruit.

Obvious effort is the antithesis of grace.

Employ in everything a certain casualness which conceals art and creates the impression that what is done and said is accomplished without effort and without its being thought about. It is from this, in my opinion, that grace largely derives.

I have discovered a universal rule which seems to apply more than any other in all human actions or words: namely, to steer away from affectation at all costs, as if it were a rough and dangerous reef, and (to use perhaps a novel word for it) to practise in all things a certain nonchalance [sprezzatura] which conceals all artistry and makes whatever one says or does seem uncontrived and effortless.

Men demonstrate their courage far more often in little things than in great.

Take care lest perchance you fall into the mistake of thinking to gain more by being merciful than by being just; for to pardon him too easily that has transgressed is to wrong him that transgresses not.

Beauty, I believe, comes from God; therefore, there can be no beauty without goodness.

Then the soul, freed from vice, purged by studies of true philosophy, versed in spiritual life, and practised in matters of the intellect, devoted to the contemplation of her own substance, as if awakened from deepest sleep, opens those eyes which all possess but few use, and sees in herself a ray of that light which is the true image of the angelic beauty communicated to her, and of which she then communicates a faint shadow to the body.