Noun
a point or fact or remark that settles something conclusively
Source: WordNetCharacter, in the long run, is the decisive factor in the life of an individual and of nations alike. Theodore Roosevelt
The range of choice open to the individual is not the decisive factor in determining the degree of human freedom, but what can be chosen and what is chosen by the individual. Herbert Marcuse
The basis of the Juche Idea is that man is the master of all things and the decisive factor in everything. Kim Il-sung
Under the rule of a repressive whole, liberty can be made into a powerful instrument of domination. The range of choice open to the individual is not the decisive factor in determining the degree of human freedom, but what can be chosen and what is chosen by the individual. Herbert Marcuse
I explained that we would like to adjust our position on the Syrian question to theirs, as, in our view, they are the decisive factor in our relations with our neighbors, and Syria is unimportant. Moshe Sharett