T-SQL
I made several attempts at this challenge before arriving at an answer that expresses truth through the code itself. After a few attempts at turning favorite quotes into pithy code translations, I realized the way to go was to set aside quotation entirely and let the language of choice simply speak the wisdom it is capable of speaking.
Since SQL is verbose, I have chosen to break this 4-line program into more lines for ease of reading without horizontal scrolling. The properly "golfed" version may be found on this SQLFiddle.
DECLARE @mindInTurmoil BIT = 'True'
Samsara: SELECT 'equanimity' AS Attitude, 0 AS Ego INTO #Self
WHERE @mindInTurmoil = 'True'
IF (SELECT TOP 1 Attitude FROM #Self ORDER BY Ego) = 'equanimity'
SET @mindInTurmoil = 'False' ELSE GOTO Samsara
SELECT CASE @mindInTurmoil
WHEN 'True' THEN 'False' WHEN 'False' THEN 'True' END AS Liberation
Returns:
Liberation
----------
True
!!"[ insert whatever aphorism you want here ]"
\$\endgroup\$