# Is the glass half empty or half full?

> common expression regarding optimism or pessimism

**Wikidata**: [Q3245088](https://www.wikidata.org/wiki/Q3245088)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Is_the_glass_half_empty_or_half_full?)  
**Source**: https://4ort.xyz/entity/is-the-glass-half-empty-or-half-full