Youth is happy because it has the capacity to see Beauty. Anyone who keeps the ability to see Beauty never grows old.
Frank Kafka

Beauty can't amuse you, but brain work - reading, writing, thinking, can.
Helen Gurley Brown
Remember that the most beautiful things in the world are the most useless; peacocks and lilies, for example.
John Ruskin

Beauty is the promise of happiness.

In life, as in art, the beautiful moves in curves.
Edward G. Bulwer-Lytton