It is said that what is called "the spirit of an age" is something to which one cannot return. That this spirit gradually dissipates is due to the world's coming to an end. For this reason, although one would like to change today's world back to the spirit of one hundred years or more ago, it cannot be done. Thus it is important to make the best out of every generation.

It is a good viewpoint to see the world as a dream. When you have something like a nightmare, you will wake up and tell yourself that it was only a dream. It is said that the world we live in is not a bit different from this.

Sincerity does not only complete the self; it is the means by which all things are completed. As the self is completed, there is human-heartedness; as things are completed, there is wisdom. This is the virtue of one’s character, and the Way of joining the internal and external. Thus, when we use this, everything is correct.

There is nothing we should be quite so grateful for as the last line of the poem that goes, 'When your own heart asks.

When one has made a decision to kill a person, even if it will be very difficult to succeed by advancing straight ahead, it will not do to think about going at it in a long roundabout way. One's heart may slacken, he may miss his chance, and by and large there will be no success. The Way of the Samurai is one of immediacy, and it is best to dash in headlong.

Light matters should be dealt with seriously. Serious matters should be dealt with lightly.

If a retainer will just think about what he is to do for the day at hand, he will be able to do anything. If it is a single day's work, one should be able to put up with it. Tomorrow, too is but a single day.