“Reason well from the beginning and then there will never be any need to look back with confusion and doubt.”
The Path to Enlightenment (1994) ISBN 1559390328
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Tenzin Gyatso 112
spiritual leader of Tibet 1935Related quotes

Journals and Papers III 3284 (1841)
1840s, The Journals of Søren Kierkegaard, 1840s
Oscar Iden Lecture Series, Lecture 3: "The State of Individuals" (1976)
Preface to 1995 edition of The Greening of America
Context: If there was any doubt about the need for social transformation in 1970, that need is clear and urgent today. … I am now more convinced than ever that the conflict and suffering now threatening to engulf us are entirely unnecessary, and a tragic waste of our energy and resources. We can create an economic system that is not at war with human beings or nature, and we can get from here to there by democratic means.

Dealing with Doubt
18 November 2007
YouTube
https://www.youtube.com/watch?v=S-fDyPU3wlQ (2:11 into video)

Interview by Wolf Blitzer on CNN http://transcripts.cnn.com/TRANSCRIPTS/0109/24/se.22.html, September 24, 2001.
Quote of Krasner in: Eleanor C. Munro (1982) Originals: American women artists. p. 114.

“Is there any knowledge in the world which is so certain that no reasonable man could doubt it?”
Source: 1910s, The Problems of Philosophy (1912)