How natural and easy it is for man to secure the attention of woman to what interests himself.
 Henry David Thoreau, A Week on the Concord and Merrimack Rivers (1849). copy citation

Context

“That kindness which has so good a reputation elsewhere can least of all consist with this relation, and no such affront can be offered to a Friend, as a conscious good-will, a friendliness which is not a necessity of the Friend’s nature. The sexes are naturally most strongly attracted to one another, by constant constitutional differences, and are most commonly and surely the complements of each other. How natural and easy it is for man to secure the attention of woman to what interests himself. Men and women of equal culture, thrown together, are sure to be of a certain value to one another, more than men to men. There exists already a natural disinterestedness and liberality in such society, and I think that any man will more confidently carry his favorite books to read to some circle of intelligent women, than to one of his own sex.” source