let alone

used to indicate that something is far less likely, possible, or suitable than something else already mentioned:

 

• He was incapable of leading a soccer team, let alone a country.
• I can hardly run let alone lift a weapon.
• He left, barely able to see straight let alone think straight.
• I've never begged anyone for anything, let alone money.

 

used especially to emphasize the improbability of a contrasting example:

• He would never walk again let alone play soccer.
• He can't find souls, let alone demons.

 

Short Story

My boss took back the raise he promised me, because I'm “not as resilient as I made him believe.” Well I had the audacity to get sick at an inconvenient time for the company. I am hardly able to leave my bed, let alone work, which is apparently due to a “lack of positive mindset.”