Only poor salesmen have to believe in their product.
Great achievements do not excuse private vice, or justify it — they simply overwhelm it.
Everyone is conservative about what he understands, and ought to be about what he does not.
It is possible to win an argument, if you’re willing to forgo the awards ceremony.
To be in love with love is an affliction; yet to hate it is more common, and more serious.
To take a bribe and deliver nothing in return makes one no less corrupt, only less reliable.
We speak with awe of ruling the world, as the supreme attainment; but the world has had many rulers, on the whole a sorry lot.
Humans have improved modestly in acquiring knowledge but vastly in transmitting it.
We perpetuate ourselves with art and offspring; but art has less alloy and may last longer.
Almost always it is action that issues in conviction; the reverse is so rare that we never fail to mark it.