The disposition which is fond of learning is inquisitive and exceedingly curious by nature, going everywhere without fear or hesitation and prying into every place, and not choosing to leave anything in existence, whether person or thing, not thoroughly investigated; for it is by nature extraordinarily greedy of everything that can be seen or heard, so as not only not to be satisfied with the things of its own country, but even to desire foreign things which are established at a great distance. At all events, they say that it is an absurd thing for merchants and dealers to cross the seas for the sake of gain, and to travel all round the habitable world, not allowing any considerations of summer, or winter, or violent gales, or contrary winds, or old age, or bodily sickness, or the society of friends, or the unspeakable pleasures arising from wife, or children, or one's other relations, or love of one's country, or the enjoyment of political connections, or the safe fruition of one's money and other possessions, or, in fact, anything whatever, whether great or small, to be any hindrance to them; and yet for men, for the sake of that most beautiful and desirable of all possessions, the only one which is peculiar to the human race, namely, wisdom, to be unwilling to cross over every sea and to penetrate every recess of the earth, inquiring whenever they can find anything beautiful either to see or to hear, and tracing out such things with all imaginable zeal and earnestness, until they arrive at the enjoyment of the things which are thus sought for and desired. Do thou then, O my soul, travel through the land....
Philo of Alexandria, On the Migration of Abraham, XXXIX.216-219.
