All non-trivial abstractions, to some degree, are leaky. -- Joel Spolsky (The Law of Leaky Abstractions)

A non negative binary integer value x is a power of 2 iff (x & (x-1)) is 0 using 2's complement arithmetic. -- [fact]

No problem should ever have to be solved twice. -- Eric S. Raymond, How to become a hacker

A guideline in the process of stepwise refinement should be the principle to decompose decisions as much as possible, to untangle aspects which are only seemingly interdependent, and to defer those decisions which concern details of representation as long as possible. -- Niklaus Wirth

It is practically impossible to teach good programming style to students that have had prior exposure to BASIC. As potential programmers, they are mentally mutilated beyond hope of regeneration. -- E. W. Dijkstra

Sometimes a man with too broad a perspective reveals himself as having no real perspective at all. A man who tries too hard to see every side may be a man who is trying to avoid choosing any side. A man who tries too hard to seek a deeper truth may be trying to hide from the truth he already knows. That is not a sign of intellectual sophistication and "great thinking". It is a demonstration of moral degeneracy and cowardice. -- Steven Den Beste

Dreaming, after all, is a form of planning. –Gloria Steinem

In my experience, there is only one motivation, and that is desire. No reasons or principle contain it or stand against it. ~Jane Smiley

Most of the important things in the world have been accomplished by people who have kept on trying when there seemed to be no help at all. ~Dale Carnegie

Success does not consist in never making mistakes but in never making the same one a second time. ~George Bernard Shaw