Dripping water hollows out stone, not through force but through persistence.
What is now reason was formerly impulse or instinct.
Daring is not safe against daring men.
What is harder than rock, or softer than water? Yet soft water hollows out hard rock. Persevere.
Brass shines with constant usage, a beautiful dress needs wearing,Leave a house empty, it rots.
If the art is concealed, it succeeds.