The shoulder shrugger says: One can take the sheep to the water, but you cannot make it drink. The entrepreneur says: Make it thirsty and it will beg you to take it to the water!
Evangelizing works on the same principle. The Gospel is that "water of life, clear as crystal flowing from the throne of God and of the Lamb." (Rev.22:1) The Water of Life is there for the drinking, but if you are unable to create a "thirst" (Isa.55:1) for righteousness, for eternal life, for Jesus Christ, the sheep will be happy to be satisfied with whatever the world has to offer.