"Somewhere out there there is a tree, tirelessly producing oxygen so you can breathe. I think you owe it an apology." Dr. Gregory House, House MD quotes
Left / Right Brain.
It’s so simple…
Four Essential Ingredients of the Human Body | Imaginary Foundation Blog
Ten Equations that changed the world. (You once told me that some day you wanted me to tell you all about science and engineering. How long have you got? It's all so fascinating and we take it too much for granted.)