Adverb
For the greatest part; for the most part; chiefly; in the main.
Source: Webster's dictionaryMostly it is loss which teaches us about the worth of things. Arthur Schopenhauer
The people who make art their business are mostly imposters. Pablo Picasso
A conservative is a man who sits and thinks, mostly sits. Woodrow Wilson
Precious things are mostly in small compass. Dutch Proverb
Arrogance is a weed that grows mostly on a dunghill. Arabic Proverb
High houses are mostly empty in the upper story. German Proverb