Complex sentence: By reasoning using "induction", Bacon meant the ability to gradually generalize a finding based on accumulating data; he advised proceeding by this method, or in other words, by building a case from the ground up.
Split into simpler sentences: By reasoning using "induction", Bacon meant the ability to generalize a finding stepwise, based on accumulating data. He advised proceeding by this method, or in other words, by building a case from the ground up.