“If you don't know history, then you don't know anything. You are a leaf that doesn't know it is part of a tree. ”
“If you [don't] know history, then [you don't] know anything. You [are] a leaf that [doesn't] know it [is] part of a tree.”
“Professor Johnston often said that if you didn't know history, you didn't know anything. You were a leaf that didn't know it was part of a tree.”
“A man who don't know history, he don't know anything.”
“Listening doesn't mean trying to understand. Anything, however trifling, may be of use one day. What matters is to know something that others don't know you know.”
“If you don't want anyone to know anything about you, don't write anything.”