Bergius
biographical name
Ber·gi·us ˈber-gē-əs 
Friedrich 1884–1949 German chemist
- be left to one's own devices
- be living on borrowed time
- be made of sterner stuff
- be made of sterner/tougher stuff
- be made of tougher stuff
- be my guest
- be mysterious
- be no respecter of persons
- be not a patch on
- be of good cheer
- be of service
- be of the opinion
- be off
- be on a short fuse
- be on intimate terms
- be on one's merry way
- be on the lookout for
- be on/have a short fuse
- be one's own boss
- be one's own man
- be one's usual self
- be oneself
- be out of a job
- be out of breath
- be paid up