Those whose conscience demands that they defy authority in some ways that involve great consequences must be willing to accept some penalty.

Every time a value is born, existence takes on a new meaning; every time one dies, some part of that meaning passes away.

If only the fit survive and if the fitter they are the longer they survive, then Volvox must have demonstrated its superb fitness more conclusively than any higher animal ever has.

If people destroy something replaceable made by mankind, they are called vandals; if they destroy something irreplaceable made by God, they are called developers.

What a man knows is everywhere at war with what he wants.

When, in the present world, men behave well, that is no doubt sometimes because they are creatures of habit as well as, sometimes, because they are reasonable.

The most serious charge which can be brought against New England is not Puritanism but February.