75 No physical pressure was brought on anyone to accept the dialogue of salvation; far from it. It was an appeal of love. True, it imposed a serious obligation on those toward whom it was directed (50) but it left them free to respond to it or to reject it. Christ adapted the number of His miracles (51) and their demonstrative force to the dispositions and good will of His hearers (52) so as to help them to consent freely to the revelation they were given and not to forfeit the reward for their consent. Hence although the truth we have to proclaim is certain and the salvation necessary, we dare not entertain any thoughts of external coercion. Instead we will use the legitimate means of human friendliness, interior persuasion, and ordinary conversation. We will offer the gift of salvation while respecting the personal and civic rights of the individual.
Source: Ecclesiam Suam (Vatican.va)