Trees...

According to one legend, Buddha meditated under a bodhi tree and achieved enlightenment, attaining complete awakening by realizing that the cause of human suffering was ignorance, and also realizing the proper steps to eliminate it.

According to another legend, the Chinese princess Si Ling-chi was sitting under a mulberry tree when the cocoon of a moth fell into her cup of hot tea, and began to unravel... hence silk was discovered.

Still another legend says Sir Isaac Newton was sitting under an apple tree when a fruit fell on his head, and inspired him to research the nature of gravity.

And the moral of all this is, that if people wish to attain great things, they should probably linger under a tree...