The mountains are calling and I must go
Known as "John of the Mountains" and "Father of the National Parks", was an influential Scottish-American naturalist, author, environmental philosopher, glaciologist, and early advocate for the preservation of wilderness in the United States of America
I only went out for a walk and finally concluded to stay out till sundown, for going out, I found, was really going in
In every walk with Nature one receives far more than he seeks
The world's big and I want to have a good look at it before it gets dark
When one tugs at a single thing in nature, he finds it attached to the rest of the world
The clearest way into the Universe is through a forest wilderness
O my Lord ! Enter the house of our heart without the slightest hesitation, because there is nothing in it whatsoever apart from the pain of separation from You.
We are all in the gutter, but some of us are looking at the stars
Either give me more wine or leave me alone
In the middle of difficulty lies opportunity
Learn from the mistakes of others. You can never live long enough to make them all yourself
The progressive development of man is vitally dependent on invention
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