What is air force reserve?

Famous quotes containing the words air, force and/or reserve:

“Just as we are learning to value and conserve the air we breathe, the water we drink, the energy we use, we must learn to value and conserve our capacity for nurture. Otherwise, in the name of human potential we will slowly but surely erode the source of our humanity.”
—Elaine Heffner (20th century)

“There is no force so democratic as the force of an ideal.”
—Calvin Coolidge (1872–1933)

“I do not know what right I have to so much happiness, but rather hold it in reserve till the time of my desert.”
—Henry David Thoreau (1817–1862)