ambition
aspiration
basis
calling
cause
consideration
font
fount
fountain
fountainhead
goal
ground
guiding light
guiding star
headspring
headstream
headwater
ideal
inspiration
intention
lodestar
matter
mine
motive
principle
quarry
reason
riverhead
sake
score
source
spring
springhead
ulterior motive
vocation
well
wellhead
wellspring
abiding-place
altruist
by-law
disfranchisement
hour hand
imperfectness
logbook
multiformity
outskirt
progressivism
recommencement
rottenest
syndicalism
traditionalism
transitoriness