"A soldier's whole life is one continuous and unceasing battle, and there is no reason why his responsibilities should vary with the state of the times. In days of crisis he has to display his strength; in days of peace to accumulate it, thus perpetually and uniquely discharging his duties to the full. It was no light task that during the past year and a half we fought with wind and waves, encountered heat and cold, and kept the sea while frequently engaging a stubborn enemy in a death or life struggle; yet, when we reflect, this is seen to have been only one in a long series of general maneuvers, wherein we had the happiness to make some discoveries; happiness which throws into comparative insignificance the hardships of war. If men calling themselves sailors grasp at the pleasure of peace, they will learn the lesson that however fine in appearance their engines of war, these, like a house built on the sand, will fall at the first approach of the storm."
January 1, 1970
https://en.wikiquote.org/wiki/T%C5%8Dg%C5%8D_Heihachir%C5%8D