"Parental investment is the key to understanding the origins of sex differences."
The only thing that is under control is your effort.
传记是最亲密的历史形式。
Quality should never be compromised, but neither should our ethical responsibilities.
我写作是为了理解。我写作是为了不忘却。
Markets are constantly in a state of uncertainty and flux, and money is made by discounting the obvious and betting on the unexpected.