四十二章經 1.41

1.41

對曰：「恒彈琴。」佛言：「絃緩何如？」曰：「不鳴矣。」「絃急何如？」曰：「聲絕矣。」「急緩得中何如？」「諸音普悲。」佛告沙門：「學道猶然，執心調適，道可得矣。」

He replied: "I was always playing the lute (vīṇā)." The Buddha said: "What happens if the strings are slack?" He said: "It does not sound." "What happens if the strings are tight?" He said: "The sound breaks." "What happens if the tightness is moderate?" "All the notes are universally harmonious." The Buddha told the śramaṇa: "Studying the Way is just like this. If you keep the mind regulated and balanced, the Way can be attained."