In occasional conversations, some on his page, some in private messages, he taught me about cinematography, he jovially explained the meaning of the military expression "Hua!"

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Robert Piper, UN Resident and Humanitarian Coordinator in Nepal, pointing out the vital meaning of freedom of artistic expression for ensuring all other Human Rights, enshrined in the UN Charter.

UNESCO: Freedom of artistic expression promoted at PEN symposium

Over time, the meaning of a word or an expression drifts.

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Terence McKenna, in his book "Food of the Gods, " wrote about the origins of human language: this unique, often ecstatic expression of consciousness that bursts forth as morsels of meaning encoded as vocal patterns.

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"The basic idea of a hyperinstrument is where the technology is built right into the instrument so that the instrument knows how it's being played literally what the expression is, what the meaning is, what the direction of the music is, " Machover says.

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