achievement
boulder
business
businessman
challenge
character
competition
concept
crisis
determination
difficult
difficulty
effort
employee
goal
hard
heavy
hill
impossible
job
leadership
man
manager
metaphor
motivation
mountain
moving
obstacle
opportunity
persistence
pressure
problem
punishment
push
pushing
risk
rock
roll
sisyphus
stone
strength
strong
struggle
success
task
tired
up
uphill
work
worker