He had often thought of our future, and foreseeing that the time must come, and fearing that it might come soon, when Ada (now very nearly of age) would leave us, and when our present mode of life must be broken up, had become accustomed to reflect on this proposal. 
He had often thought of our future, and foreseeing that the time must come, perhaps very soon, when Ada (now nearly of age) would leave us, and when our present mode of life must be broken up, had reflected on this proposal. 