The botanist should make interest with the bees if he would know when the flowers open and when they close.

Since most of us spend our lives doing ordinary tasks, the most important thing is to carry them out extraordinarily well.

The improvements of ages have had but little influence on the essential laws of man's existence: as our skeletons, probably, are not to be distinguished from those of our ancestors.

Love does not analyze its object.

No people ever lived by cursing their fathers, however great a curse their fathers might have been to them.

There is a chasm between knowledge and ignorance which the arches of science can never span.

. . . I was rich, if not in money, in sunny hours and summer days. . . .