In medicine, when there is genuine uncertainty as to whether the benefits of a treatment outweigh the harms - called equipoise - some ethicists argue there's a moral obligation to scientifically study such treatments.

In a capital packed with bloviators and arm-twisters, Jackson maintains an equipoise of soft-spoken graciousness, combining intellectual clarity with iron resolve.

Often we think that if we are not happy, it's our problem, and we just have to show more grit, or the new terminology, more "mindfulness," and we'd achieve greater equipoise.

Through every change of style, Thorn’s voice — low, smoky and pensive, rarely indulging in vibrato or ornamentation — gave the duo’s songs an emotional equipoise.

When it’s complete, the mobile sits in perfect equipoise.