A man ought to inquire and find out what he really and truly has an appetite for; what suits his constitution; and that, doctors tell him, is the very thing he ought to have in general. And so with books.
Thomas CarlyleGive us, O give us the man who sings at his work! Be his occupation what it may, he is equal to any of those who follow the same pursuit in silent sullenness. He will do more in the same time . . . he will do it better . . . he will persevere longer. One is scarcely sensible to fatigue while he marches to music. The very stars are said to make harmony as they revolve in their spheres.
Thomas Carlyle