What is "with reason"

Usage examples of "with reason".

Commander Farragut thought, and with reason, that it was better to remain in deep water, and keep clear of continents or islands, which the beast itself seemed to shun (perhaps because there was not enough water for him!

But there the resemblance ended, for where there was a palpable air of power tempered with reason and compassion about Keighvin, this man wore the mantle of power without control and shaped by greed.

After allowing himself to touch the ruff of her sleeve, and remembering how soft and young and vital she had been the day they were wed, Donald walked from the chapel stronger than when he had entered, with reason in control of the anger he had shown General Norbom.

For is it compatible with reason for a man to deny the existence of what he understands, because it is said to be that being whose existence he denies because he does not understand it?

But Antigonus felt a solicitude when he was to meet Zeno, and with reason, for he was desirous to please him, and this was external.