Although this may be a most difficult thing, if one will do it, it can be done. There is nothing that one should suppose cannot be done. - Yamamoto Tsunetomo

The supreme style of love is unknown love. If the affection is known by the beloved, that love is snob. If you sacrifice your life for the beloved, and she recognises your love after you die, your soul would be appraised.

Meditation on inevitable death should be performed daily.
Every day when one’s body and mind are at peace, one should
meditate upon being ripped apart by arrows, rifles, spears and
swords, being carried away by surging waves, being thrown into
the midst of a great fire, being struck by lightning, being shaken
to death by a great earthquake, falling from thousand-foot cliffs,
dying of disease or committing seppuku at the death of one’s
master. And every day without fail one should consider himself
as dead.

"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."