We have known since the 1800s that carbon dioxide traps heat in the atmosphere. The right amount keeps the climate conducive to human life. James Hansen 1800samountatmosphere Change image and share on social
We have language and they do not. Chimps communicate by embracing, patting, looking - all these things. And they have lots of sounds. But they cannot sit and discuss. They cannot teach about things that are not present, as far as we know. Jane Goodall chimpcommunicatediscuss share on social
We have lasted this long close together, so we must have something going for each other. Linda McCartney closelastlong Change image and share on social
We have laws against torture. The Constitution says nothing whatever about torture. It speaks of punishment; 'cruel and unusual' punishments are forbidden. Antonin Scalia constitutioncruelforbid Change image and share on social
We have learned a long time ago that one cannot compromise with terrorists. Ariel Sharon agocompromiselearn Change image and share on social
We have learned a lot about how to treat Ebola, how to ensure that the people caring for people with Ebola do so minimizing their risk of infection. Tom Frieden careebolaensure Change image and share on social
We have learned by now, or should have, that the best-intended designers of aid programs can make ghastly mistakes in their sophisticated plans. Anthony Lewis aiddesignerghastly Change image and share on social
We have learned how to do a lot of things. We must try to relearn why. Flora Lewis learnlotrelearn Change image and share on social
We have learned in recent years to translate almost all of political life in terms of conspiracy. And the spy novel, as never before, really, has come into its own. John le Carre conspiracylearnlife Change image and share on social
We have learned that peace and well-being are indivisible and that our peace and well-being cannot be purchased at the price of peace or the well-being of any other country. James F. Byrnes countryindivisiblelearn Change image and share on social
