Maria Mitchell: Life, Letters and Journals (illustrated) by Maria Mitchell, 1896, p. 189.
Maria Mitchellová: Citáty v angličtine
Maria Mitchell: Life, Letters and Journals (illustrated) by Maria Mitchell, 1896 http://pinetreeweb.com/bp-admiral.htm.
Maria Mitchell: Life, Letters and Journals (illustrated) by Maria Mitchell, 1896, p. 186.
Maria Mitchell: Life, Letters and Journals http://www.gutenberg.org/cache/epub/10202/pg10202.html (1896).
Maria Mitchell: Life, Letters and Journals (illustrated) by Maria Mitchell, 1896, p. 188.
“Study as if you were going to live forever; live as if you were going to die tomorrow.”
The Book of Positive Quotations By John Cook, Leslie Ann Gibson (2nd ed. 2007), p. 283.
Attributed
Maria Mitchell: Life, Letters and Journals (illustrated) by Maria Mitchell, 1896, p. 186.
“Every formula which expresses a law of nature is a hymn of praise to God.”
Maria Mitchell: Life, Letters and Journals http://www.gutenberg.org/cache/epub/10202/pg10202.html (1896).