When you are not permitted to enjoy long seasons of leisure, economize the short ones; ten minutes thus faithfully employed before God, in the midst of your distractions, will be as valuable to you as whole hours devoted to Him, in your more unoccupied moments. Farther, these little odds and ends of time, will amount to quite a sum in the course of the day, and present this advantage, that God will very likely have been more in mind than if you had given it to Him all at once.
—François Fénelon, Spiritual Progress