Science may eventually explain the world of How. The ultimate world of Why may remain for contemplation, philosophy, religion.

The happiest life has the greatest number of points of contact with the world, and it has the deepest feeling and sympathy with everything that is.

Give the children an opportunity to make garden. Let them grow what they will. It matters less that they grow good plants than that they try for themselves.

Is there any progress in horticulture? If not, it is dead, uninspiring. We cannot live in the past good as it is; we must draw our inspiration from the future.

A person cannot love a plant after he has pruned it, then he has either done a poor job or is devoid of emotion.

Anyone who acquires more than the usual amount of knowledge concerning a subject is bound to leave it as his contribution to the knowledge of the world.

Science may eventually explain the world of How. The ultimate world of Why may remain for contemplation, philosophy, religion.