Franklin said in "Advice to a Young Businessman" written in 1748:

Remember, time is money. If a person can earn ten cents a day by his own labor, Order, then, if he goes out or sits around for half a day today, even if he only spends six pence during this period, it cannot be considered that this is all his expenditure; in fact, he has spent, or should say thrown away, the other five pence. Order.