2011 dec 2 ?

AA Daily Quote: I know now that if I cannot change the wind, I can adjust my sail.
"IF?" "IF?" Does that mean you, or somebody else, CAN change the wind? If so, please, send me a link.
Who has seen the wind?
Neither I nor you:
But when the leaves hang trembling,
The wind is passing through.
Who has seen the wind?
Neither you nor I:
But when the trees bow down their heads,
The wind is passing by.
-- Who Has Seen The Wind?, Christina Giorgina Rossetti