An invasion of armies can be resisted, but not an idea whose time has come.
Schlitter, D. A., A. W. Ferguson, and M. M. McDonough. (2014) Book Review: Mammals of Africa (6 volumes), Edited by J. Kingdon, D. Happold, T. Butynski, M. Hoffmann, M. Happold, and J. Kalina. Journal of Mammalogy, 95(6): 1299-1303.