Cause

"Religious controversies are always productive of more acrimony and irreconcilable hatreds than those which spring from any other cause."

"Marriage is the chief cause of divorce."

"Shallow men believe in luck or in circumstance. Strong men believe in cause and effect."

"Truth never damages a cause that is just."

"Men always remember a woman who caused them concern and uneasiness."

"Nature is the source of all true knowledge. She has her own logic, her own laws, she has no effect without cause nor invention without necessity."

"Opinions have caused more ills than the plague or earthquakes on this little globe of ours."

"Hate, it has caused a lot of problems in the world, but has not solved one yet."

"Economics is a study of cause and effect relationships in an economy."

"There are many causes I would die for. There is not a single cause I would kill for."

"Most of the shadows of this life are caused by standing in one's own sunshine."

"Love does not cause suffering: what causes it is the sense of ownership, which is love's opposite."