"he felt leanings toward frivolity"
"he has a proclivity for exaggeration"
"the aptness of iron to rust"
"the propensity of disease to spread"
That dreadful propensity..for writing verses.
出自: Sydney Smith
Selfishness and laziness are..propensities inherent in human beings.
出自: E. Fromm
His propensity to..morbid moods.
出自: D. Cecil