When the value of mathematical training is called in question, quote the inscription over the entrance into the academy of Plato , the philosopher: "Let no one who is unacquainted with geometry enter here."
The individual, by means of the discipline imposed on him by sport, not only plays and finds relaxation from the various compulsions to which he is subjected, but without knowing it trains himself for new compulsions. ... Training in sports makes of the individual an efficient piece of apparatus which is henceforth unacquainted with anything but the harsh joys of exploiting his body and winning.jacques ellul
The Americans never use the word peasant, because they have no idea of the class which that term denotes; the ignorance of more remote ages, the simplicity of rural life, and the rusticity of the villager have not been preserved among them; and they are alike unacquainted with the virtues, the vices, the coarse habits, and the simple graces of an early stage of civilization.alexis de tocqueville
Galen himself, who was not unacquainted with Moses's writings, and with christianity, fancy'd the earth had a certain soul or mind imparted to it by the superior bodies.