Atheist
Don't miracles violate the laws of science?
Natural laws describe how nature ordinarily behaves given only natural causes acting; a miracle is not a violation but a case of God, the author of those laws, freely acting beyond the ordinary causal chain — no more a 'violation' than a programmer altering their own program.
Catholic teaching
The Church teaches that miracles are signs of God's power and confirmations of revelation, always coherent with reason though beyond nature's normal operation, and that the same God who ordinarily sustains the laws of nature can, without contradiction, act directly and extraordinarily for a saving purpose.
Biblical foundation
John calls Jesus' miracles 'signs' pointing beyond themselves to reveal his identity and glory (John 20:30-31), and Nicodemus reasons that 'no one can do these signs... unless God is with him' (John 3:2), treating miracles as intelligible evidence rather than incoherent claims.
Scripture references
Historical evidence
The Lourdes Medical Bureau, staffed by physicians of various beliefs including skeptics, has rigorously examined thousands of claimed healings since 1883 and formally recognized around 70 as scientifically inexplicable by current medical knowledge, subjecting miracle claims to genuine empirical scrutiny rather than credulous acceptance.
The Church Fathers
“A portent, therefore, happens not contrary to nature, but contrary to what we know as nature.”