What does it mean?
Gandalf tells Frodo that we can't choose the times we live in, but we can choose how we use our time.
Who said it?
J. R. R. Tolkien: English writer and philologist (1892–1973). Source: The Fellowship of the Ring (1954).
Time– J. R. R. Tolkien, The Fellowship of the Ring (1954)
“All we have to decide is what to do with the time that is given us.”