And at night. Do you then have no wisdom?
And by night. Would you understand?
and at night, will you not understand
And at night. Do you not then understand
And at the night, so do you not reason/understand/comprehend
will you not take a lesson
And during the night; so do you not have sense
And by night, Will you not understand
And at night as well. Do you not even then understand
And (sometimes) by night. Do you not still make use of (your) understanding (and take heed)
And at night; will you not then reflect