- John Muir (en.wikiquote.org)
John Muir (21 April 1838 – 24 December 1914) was a Scottish-American naturalist, author, environmental philosopher and early advocate of preservation of wilderness in the United States. His letters, essays, and telling of his adventures in nature, especially in the Sierra Nevada of California, have been read by millions. His activism helped to preserve the Yosemite Valley, Sequoia National Park and other wilderness areas. The Sierra Club, which he founded, is a prominent American conservation organization.
- Otto Dix (Wikipedia)
Wilhelm Heinrich Otto Dix (German: [ˈvɪlhɛlm ˈhaɪnʁɪç ˈʔɔtoː ˈdɪks]; 2 December 1891 – 25 July 1969) was a German painter and printmaker, noted for his ruthless and harshly realistic depictions of German society during the Weimar Republic and the brutality of war. Along with George Grosz and Max Beckmann, he is widely considered one of the most important artists of the Neue Sachlichkeit.