This is Alexander Bain, who not only has all the sideburns, but was credited by Peirce with one of the core ideas of Pragmatism: A belief is something on which one acts. This is also similar to the Neo-Confucian philosopher Wang Yangming, who argued that reading and memorizing Confucius’ Analects was not enough to know the text if one did not act in accord with Confucius’ ideas.