“Know that your work speaks only to those on the same wavelength as you.”

Source: Life, the Truth, and Being Free (2010), p. 109
Context: How would your life be different if … You walked away from gossip and verbal defamation? Let today be the day … You speak only the good you know of other people and encourage others to do the same.

Je ne sais point de plus grande finesse pour parvenir à aimer que d'aimer, comme on apprend à étudier en étudiant, à parler en parlant, à travailler en travaillant.
Francis de Sales, quoted in Vie de saint François de Sales, évèque et prince de Genève by André Jean Marie Hamon (Librairie Victor Lecoffre, Paris, 1896), Vol. II, Book VII, Ch. V: Son amour pour Dieu
Variant of sourced quotation: Comme on apprend à étudier en étudiant, à jouer du luth en jouant, à nager en nageant; aussi apprend-on à aimer Dieu et le prochain en l'aimant. — Francis de Sales, quoted in Jean-Pierre Camus, "L'esprit du bienheureux saint François de Sales" (1641), Part I, Section 31; published in Oeuvres complètes de saint François de Sales, ed. Jean-Irénée Depéry (Berche et Tralin, Paris, 1875), Vol. I
Misattributed

Source: My Name is Red

Source: Padre Pio

Quoted by Bishop Jean-Pierre Camus in The Spirit of Saint Francis de Sales, ch. 1, Pg. 3 (1880)

The Nest Leader's Manual (1933)

Marcelle Marquet, Marquet Fernand Hazan Editions, Paris 1955, p. 6; as quoted in 'Appendix – Marquet Speaks on his Art', in "Albert Marquet and the Fauve movement, 1898-1908", Norris Judd, published 1976, - translation Norris Judd - Thesis (A.B.)--Sweet Briar College, p. 116