"Most people might just as well buy a share of the whole market, which pools all the information, than delude themselves into thinking they know something the market doesn't."

“What is the "cost of capital" to a, firm in a world in which funds are used to acquire assets whose yields are uncertain; and in which capital can be obtained by many different media, ranging from pure debt instruments, representing money-fixed claims, to pure equity issues, giving holders only the right to a pro-rata share in the uncertain venture? This question has vexed at least three classes of economists: the corporation finance specialist concerned with the techniques of financing firms so as to ensure their survival and growth; the managerial economist concerned with capital budgeting; and the economic theorist concerned with explaining investment behavior at both the micro and macro levels.”

“When I started worrying about stocks, it was the late 1930s and early 1940s and it didn't seem like a good way to make money then, either.”

“What counts is what you do with your money, not where it came from.”

“Think of the firm as a gigantic tub of whole milk. The farmer can sell the whole milk as it is. Or he can separate out the cream, and sell it at a considerably higher price than the whole milk would bring. But, of course, what the farmer would have left would be skim milk, with low butter-fat content, and that would sell for much less than whole milk. The Modigliani-Miller proposition says that if there were no cost of separation , the cream plus the skim milk would bring the same price as the whole milk.”