Here are 5 main principles of Shotokan Karate, known as Dojo Kun. Attributed to Gichin Funakoshi.

1. 一、人格 完成に 努める こと / Hitotsu, jinkaku kensei ni tsutomeru koto
2. 一、誠の道を守ること / Hitotsu, makoto no michi wo mamoru koto
3. 一、努力の精神を養うこと/ Hitotsu, doryoku no seishin wo yashinau koto
4. 一、礼儀を重んずること/ Hitotsu, reigu wo omonzuru koto
5. 一、血気の勇を戒むること / Hitotsu, kekki no yu wo imashimaru koto

Approximate translation:

1. Strive for perfection of perfection of character
2. Protect the way of truth
3. Foster the spirit of effort
4. Be respectfull
5. Refrain from violence

Source : https://en.wikipedia.org/wiki/D%C5%8Dj%C5%8D_kun

Illustration : ft-karate Verlag