text: But I must not be led astray into another subject than that which we are discussing. We also, I say, ought to copy these bees, and sift whatever we have gathered from a varied course of reading, for such things are better preserved if they are kept separate; then, by applying the supervising care with which our nature has endowed us, – in other words, our natural gifts, – we should so blend those several flavours into one delicious compound that, even though it betrays its origin, yet it nevertheless is clearly a different thing from that whence it came. This is what we see nature doing in our own bodies without any labour on our part; the food we have eaten, as long as it retains its original quality and floats in our stomachs as an undiluted mass, is a burden; but it passes into tissue and blood only when it has been changed from its original form. So it is with the food which nourishes our higher nature, – we should see to it that whatever we have absorbed should not be allowed to remain unchanged, or it will be no part of us. We must digest it; otherwise it will merely enter the memory and not the reasoning power. Let us loyally welcome such foods and make them our own, so that something that is one may be formed out of many elements, just as one number is formed of several elements whenever, by our reckoning, lesser sums, each different from the others, are brought together. This is what our mind should do: it should hide away all the materials by which it has been aided, and bring to light only what it has made of them. Even if there shall appear in you a likeness to him who, by reason of your admiration, has left a deep impress upon you, I would have you resemble him as a child resembles his father, and not as a picture resembles its original; for a picture is a lifeless thing.