Using a disjunct:
I'm honest when I say that few people tell the truth when they say that they have never told a lie.
Honestly, few people tell the truth when they say that they have never told a lie.
Using a disjunct:
I'm honest when I say that few people tell the truth when they say that they have never told a lie.
Honestly, few people tell the truth when they say that they have never told a lie.