In a reasonable manner
rationally, sanely, logically, understandably, plausibly, sensibly, soundly, persuasively, fairly, justly, honestly, wisely, judiciously, plainly, intelligently, soberly, unaffectedly, agreeably, in reason, in all reason, within reason, within the bounds of reason, as far as possible, as far as could be expected, as much as good sense dictates, within reasonable limitations, within the bounds of possibility, with due restraint.
To a moderate degree
mildly, prudently, fairly, moderately, inexpensively, temperately, evenly, calmly, gently, leniently, sparingly, frugally, indulgently, tolerantly, within bounds.