Sometimes it's the very people no one imagines anything of,
who do the things no one can imagine.

Attributed to Alan Mathison Turing, 1912 - 1954

God, grant me the serenity to accept the things I cannot change,
the courage to change the things I can,
and the wisdom to know the difference.

Reinhold Niebuhr, Serenity Prayer, 1934

Alas, how terrible is wisdom when it brings no profit to the wise.

Sophocles, Oedipus Rex, 430 BC