Dogen instructed,

All the buddhas and patriarchs were originally ordinary people. While they were ordinary people, they certainly did bad deeds and had evil minds. Some of them were undoubtedly dull or even stupid. However, since they reformed their minds, followed their teachers, and practiced the Way, they all became buddhas and patriarchs. People today should also be like this. Do not underestimate yourselves because you think you are dull or stupid. If you do not arouse bodhi-mind in this present lifetime, when can you expect to be able to practice the Way? If you force yourselves to practice now, you will surely attain the Way.