Quoting Bertrand Russell (on Harvard in 1914)

I miss in the professors the atmosphere of meditation and absent-mindedness which one associates with thought -- they all seem more alert and business-like and punctual than one expects very good people to be. And they are all overworked; President Lowell, whom I find utterly loathsome, is determined to get his money's worth out of them and throw them on the scrap heap when they are used up. -- From Russell's letter to Lucy Donnelly (March 20, 1914) (reproduced on p. 41 of Bertrand Russell's America: His Transatlantic Travels and Writings. Volume 1 1896-1945, ed. Barry Feinberg, Ronald Kasrils [Routledge, 1973])