How do Cessationists expect people to believe without seeing miracles today?

> Classical Cessationism asserts that the "sign gifts" such as prophecy, healing and speaking in tongues ceased with the apostles and the finishing of the canon of Scripture. They only served as launching pads for the spreading of the Gospel; as affirmations of God's revelation. If those people who lived around Christ's time witnessed miracles, and thus believed in God after seeing miracles, how is it that we who are living in the present age are expected to believe in God if we don't see any miracles? In the present day, why is it that we have to believe the humans, normal people who don't perform miracles, that preach the Gospel, that what they say is true? Isn't it "unfair" that we humans today have to believe on what other people preach without seeing any miracles, but people in Christ's time got to see miracles and thus it was easier to believe in God?