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Sun Tzu Quotes

Generally, the army prefers high ground and dislikes low ground,
values the sunny side and despises the shady side, nourishes its
health and occupies places with resources, and avoids numerous
sicknesses. These factors mean certain victory. Where there are
hills and embankments, you must position on the sunny side, with
the hills and embankments to your right back. These are
advantages to the army.
                -- Sun Tsu, "The Art of War"