Every truth goes through three stages: first, it is ridiculed; second, it is violently opposed; third, it is accepted as self-evident.
A great business at a fair price is superior to a fair business at a great price.
The secret of change is to focus all of your energy not on fighting the old, but on building the new.
Mathematics is the most beautiful and most powerful creation of the human spirit.
"The books that the world calls immoral are books that show the world its own shame."
The rocks we quarry today are the heritage we leave for tomorrow.