“If the relationship sought proves to be real, the rings in the trunks of trees give us not only a means of studying climatic changes through long periods of years, but perhaps also of tracing changes in solar activity during the same time.”

Nature is a book of many pages and each page tells a fascinating story to him who learns her language.

Our fertile valleys and craggy mountains recite an epic poem of geologic conflicts.

The science of meteorology is still comparatively new and supplies us only with a few decades of records on which to base our conclusions.

Do not take someone’s silence as his pride, perhaps he is busy fighting with his self.

The most gifted natures are perhaps also the most trembling.

The limit of man s knowledge in any subject possesses a high interest which is perhaps increased by its close neighbourhood to the realms of imagination.

So perhaps the best thing to do is to stop writing Introductions and get on with the book.

Perhaps the earth can teach us As when everything seems dead And later proves to be alive.

Experience has shown, and a true philosophy will always show, that a vast, perhaps the larger, portion of truth arises from the seemingly irrelevant.

There is no gain without risk, perhaps no risk without love.

In an artist’s life, death is perhaps not the most difficult thing.