Universal truth and ethic are one.

True and tree are cognate with their root in dhri (root of dharma)(Collageate English Dictionary gives deru as root).

Tree never lie, steal nor kill. When we sit in zen, we are like trees, not lying, stealing, killing (observing the global ethic), as in the koan of the cypress tree in the garden.

Universal truth is realized in the universal or global ethic.