Buildings must be constructed with good ventilation and sunlight to prevent drowsiness and dullness.

Original passage

In the construction of buildings, whether for public purposes or as dwellings, care should be taken to provide for good ventilation and plenty of sunlight. Churches and schoolrooms are often faulty in this respect. Neglect of proper ventilation is responsible for much of the drowsiness and dullness that destroy the effect of many a sermon and make the teacher's work toilsome and ineffective.