“We can grieve over lost powers and memories, or rejoice over gained knowledge and maturity, according to taste.”
Source: Think (1999), Chapter Four, The Self, p. 146
Help us to complete the source, original and additional information
Simon Blackburn 29
British academic philosopher 1944Related quotes

Letter to the members http://memory.loc.gov/cgi-bin/ampage?collId=mgw2&fileName=gwpage039.db&recNum=111 of The New Church in Baltimore (22 January 1793), published in The Writings Of George Washington (1835) by Jared Sparks, p. 201
1790s
Context: We have abundant reason to rejoice, that, in this land, the light of truth and reason has triumphed over the power of bigotry and superstition, and that every person may here worship God according to the dictates of his own heart. In this enlightened age, & in this land of equal liberty, it is our boast, that a man's religious tenets will not forfeit the protection of the laws, nor deprive him of the right of attaining & holding the highest offices that are known in the United States.
Your prayers for my present and future felicity are received with gratitude; and I sincerely wish, Gentlemen, that you may in your social and individual capacities taste those blessings, which a gracious God bestows upon the righteous.
"Literary bias on the slippery slope", p. 249
Bully for Brontosaurus (1991)

Shaking the Tree
Song lyrics, Shaking the Tree (1990)

“By using power, money, fraud, the enemy is interested in gaining control over the world of Islam.”
Friday Sermon at Tehran University by Ayatollah Mohammad Emami-Kashani. http://www.memritv.org/clip_transcript/en/60.htm May 2004.

Implosion Magazine, No. 83, p. 16 (Callum Coats: Energy Evolution (2000))
Implosion Magazine

“Knowledge is power; knowledge shared is power lost.”
This has been attributed to Crowley on the internet, but without citation. No incidents of it in Crowley's works have as yet been located.
This was quoted as an "occult tradition" in Fundamentals of Experimental Psychology (1976) by Charles Lawrence Sheridan, p. 17, but without any reference to Crowley.
Disputed
Variant: Knowledge is power and knowledge shared is power lost.

“No nobody can give you the power to rise over love and over hate.”
Source: Song Iron Sky