The creation of a thousand forests is in one acorn.
What we are doing to the forests of the world is but a mirror reflection of what we are doing to ourselves and to one another.
Nature is pleased with simplicity.
Study nature, love nature, stay close to nature. It will never fail you.
The mountains are calling, and I must go.
Adopt the pace of nature: her secret is patience.
To sit in the shade on a fine day and look upon the verdant green hills is the most perfect refreshment.
In all things of nature, there is something of the marvelous.
The poetry of the earth is never dead.
In every walk with nature, one receives far more than he seeks.
Nature always wears the colors of the spirit.
The clearest way into the Universe is through a forest wilderness.
I only went out for a walk and finally concluded to stay out till sundown, for going out, I found, was really going in.
To forget how to dig the earth and to tend the soil is to forget ourselves.
The best time to plant a tree was 20 years ago. The second best time is now.
Nature does not hurry, yet everything is accomplished.
A true conservationist is a man who knows that the world is not given by his fathers, but borrowed from his children.
Look deep into nature, and then you will understand everything better.