Who says fruit is to be prefered to foliage ? I often wonder about something along this line when speaking of education. Are students learning for getting a job (fruit) or for culture (foliage) ? Choosing between one or the other should it be the choice of the student or of the society ? I believe the most common answer is : we study for job and the choice is made by society. But I, for one, cannot so easily dismiss the question. It has too much to do with meaning of life: are people living to work/act or to understand/love. That's obviously not the only way to interpret this quote, the obvious one would probably be a simple statement that knowledge can be flashy but still sterile. Anyway, as most good quotes it is ambiguous, henceforth may lead to fruitful thinking.