Caught in the rain? Running won't keep you dry. Accept getting wet.

The source

"Caught in the rain? Running won't keep you dry. Accept getting wet." Yamamoto Tsunetomo said it in Hagakure, Book 1. Translated from the original Japanese by Spartan Surfers.

"途中にて俄雨に逢ひて、濡れじとて道を急ぎ走り ... 濡るゝ事は替らざるなり ... 初より思ひあきらめて濡るゝ時、心に苦なし"

Original Japanese, Hagakure, Book 1. Japanese: Hagakure, vol. 1 (1937 printing), NDL digital text.

Who said it

Yamamoto Tsunetomo (1659–1719). Samurai turned monk whose spoken reflections were written down as Hagakure, Hidden by Leaves.

Questions

Who said "Caught in the rain? Running won't keep you dry. Accept getting wet."?

Yamamoto Tsunetomo (1659–1719). Source: Hagakure, Book 1.

What is the original Japanese?

途中にて俄雨に逢ひて、濡れじとて道を急ぎ走り ... 濡るゝ事は替らざるなり ... 初より思ひあきらめて濡るゝ時、心に苦なし. Translated from the original Japanese by Spartan Surfers.