Traveling is a fool's paradise.

Pay no heed to the average photographer's remarks upon "flat" and "weak" negatives. Probably he is flat, weak, stale, and unprofitable; your negative may be first-rate, and probably is if he does not approve of it.

The narrow sectarian cannot read astronomy with impunity. The creeds of his church shrivel like dried leaves at the door of the observatory.

Nature is thoroughly mediate. It is made to serve. It receives the dominion of man as meekly as the ass on which the Saviour rode.It offers all its kingdoms to man as the raw material which he may mould into what is useful. Man is never weary of working it up.

As much wisdom may be expended on a private economy as on an empire, and as much wisdom may be drawn from it.

Nature will not be Buddhist: she resents generalizing, and insults the philosopher in every moment with a million fresh particulars.

Never lose an opportunity to see anything that is beautiful. It is God's handwriting a wayside sacrament. Welcome it in every fair face, every fair sky, every fair flower.