We all carry this beautiful, "Wonderful World" around inside ourselves. We already know, intuitively, that Love creates Beauty. We are born knowing this.
The Art is to become adept at the expression of Love. We must remember, appreciating the Beauty and Love that others give us is a gift we give to them for giving their inner Beauty and Love to us.
In such ways, the inner experience of Love, which is the truest expression of Beauty in human beings, becomes manifest in our lives and in theirs.