Francis Bacon
Some books are to be tasted, others to be swallowed and some few to be chewed and digested; that some books are to be read only in parts; others to be read but not curiously; and some few to be read wholly and with diligence and attention.
Swami Vivekananda
One of the greatest lessons I have learnt in my life is to pay as much attention to the means of work as to its end