From Spurgeon:

Charles H. Spurgeon
When men change [their opinions about the truth] often they generally need to be changed in the most emphatic sense. Our “modern thought” gentry are doing incalculable mischief to the souls of men, and resemble Nero fiddling on top of a tower with Rome burning at his feet.
Souls are being damned, and yet these men are spinning theories. Hell gapes wide, and with her open jaws swallows up myriads, and those who should spread the tidings of salvation are “pursuing fresh lines of thought.” Highly cultured soul-murderers will find their boasted “culture” to be no excuse in the day of judgment.
from Lecture #15.
Let’s pray for those who seem to fall into this category in our day and age. Perhaps God might grant them (and me) repentance. Them, for their fresh lines of thought–and me, for failing to pray for them previously.