Quote by Theodore Roosevelt
Leave it as it is. The ages have been at work on it and man can only mar it.
This quote implies that there is a natural beauty or perfection inherent in something, possibly referring to a work of art or the natural world. The idea is that time and nature have contributed to its creation and any human intervention can only detract from its originality or splendor. It suggests the need to respect the inherent value and uniqueness of things, and not try to improve or change that which is already perfect in its own way.
You have it easily in your power to increase the sum total of this world's happiness now. How? By giving a few words of sincere appreciation to someone who is lonely or discouraged. Perhaps you will forget tomorrow the kind words you say today, but the recipient may cherish them over a lifetime.