175. God has provided us with constitutional force, which will be needed at different periods of our life. If we recklessly exhaust this force by continual overtaxation, we shall sometime be losers. Our usefulness will be lessened, if not life itself destroyed.—Christian Temperance and Bible Hygiene, 65. 176. God endowed man with so great vital force that he has withstood the accumulation of disease upon the race in consequence of perverted habits,