“Be sincere, be brief, be seated.”
Advice to his son James on how to make a public speech, as quoted in Basic Public Speaking (1963) by Paul L. Soper, p. 12
Posthumous publications
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Franklin D. Roosevelt 190
32nd President of the United States 1882–1945Related quotes

“For a brief time I was here; and for a brief time I mattered.”
His entire afterword to The Essential Ellison (1987)
Also quoted in the death announcement made by his publicist (28 June 2018).

28 August 1893
New Lamps for Old (1893)

1970's, Conversations with Samuel Beckett and Bram van Velde (1970 - 1972)

Source: Light on Life: The Yoga Journey to Wholeness, Inner Peace, and Ultimate Freedom, p. 29

“Sincerity is the way of Heaven. The attainment of sincerity is the way of men.”
The Analects, The Doctrine of the Mean
Context: Sincerity is the way of Heaven. The attainment of sincerity is the way of men. He who possesses sincerity is he who, without an effort, hits what is right, and apprehends, without the exercise of thought — he is the sage who naturally and easily embodies the right way. He who attains to sincerity is he who chooses what is good, and firmly holds it fast. To this attainment there are requisite the extensive study of what is good, accurate inquiry about it, careful reflection on it, the clear discrimination of it, and the earnest practice of it.

“Sincerity is the end and beginning of things; without sincerity there would be nothing.”
The Analects, The Doctrine of the Mean
Context: Sincerity is the end and beginning of things; without sincerity there would be nothing. On this account, the superior man regards the attainment of sincerity as the most excellent thing.

“Is sincerity a virtue by itself? A serial killer has also acted sincerely.”
Oluşmak (To Become) Aphorisms (Pan Publishing House, Istanbul, 2011)