“I esteem his understanding and subtlety highly, but I consider that they have been put to ill use in the greater part of his work, where the author studies things of little use... { Writing about Isaac Newton }” — Christiaan Huygens Copy Share Image
“ [Why waste energy with wasted movements?] Very commonly, tightening and furrowing the brow while concentrating... Is the brain a muscle that works better by tensing the skull?” — Kenneth S. Cohen Copy Share Image
![“[Why waste energy with wasted movements?] Very commonly, tightening and furrowing the brow while concentrating... Is the brain a muscle that works better by tensing the skull?” quote by Kenneth S. Cohen](https://sms4smile.com/quotes/img-quotes/cbc/kenneth-s-cohen-65200_awareness_why-waste-energy-with-wasted-movements-v_2869770.jpg)