(Morning):

You are up early. Training early may prove fruitful for you.

(Midday):

Even the strongest warriors need a break, remember to eat as well.

(Evening):

Good evening. Before dinner, be sure to finish your tasks before Frederick hears of it.

(Late night):

Divines be damned!! Do not skulk around so late in the night you fool!

(Birthday):

I am aware that it is your birthday... I Hope it is pleasant for you.

(Misc. ; no effect in the barrack nor on the bottom screen):

I... remembered something... How are they now...?