我们是共同的历史,共同的书。我们在品味或经验上不是被拥有或一夫一妻的。
Happiness, like unhappiness, is a proactive choice.
Energy efficiency is the unsung hero in our quest to reduce emissions.
"Parental investment is the key to understanding the origins of sex differences."
We are all given one thing by which our lives are measured, one determination.