In the Episcopal Church USA today is the liturgical memorial of Thomas a Kempis (1380-1471). He’s not venerated as a saint in the Catholic but his liturgical prayer is worth noting, not least because of his famous spiritual work the Imitation of Christ. Read the encyclopedia article on Kempis.
Holy Father, you have nourished and strengthened your Church by the inspired writings of your servant Thomas a Kempis: Grant that we may learn from him to know what is necessary to be known, to love what is to be loved, to praise what highly pleases you, and always to seek to know and follow your will;
through Jesus Christ our Lord, who lives and reigns with you and the Holy Spirit, one God, for ever and ever.