If people destroy something replaceable made by mankind, they are called vandals; if they destroy something irreplaceable made by God, they are called developers.

The flowers never waste their sweetness on the desert air or, for that matter, on the jungle air. In fact, they waste it only when nobody except a human being is there to smell it. It is for the bugs and a few birds, not for men, that they dye their petals or waft their scents.

Nature takes no account of even the most reasonable of human excuses.

And the thing which is missing is love, some feeling for, as well as some understanding of, the inclusive community of rocks and soils, plants and animals, of which we are a part.

A tragic writer does not have to believe in God, but he must believe in man.

The mind leaps, and leaps perhaps with a sort of elation, through the immensities of space, but the spirit, frightened and cold, longs to have once more above its head the inverted bowl beyond which may lie whatever paradise its desires may create.

It is not ignorance but knowledge which is the mother of wonder.