Silently shall I endure abuse as the elephant in battle endures the arrow sent from the bow: for the world is ill-natured.
Ahaṁ nāgova saṅgāme, cāpato patitaṁ saraṁ; Ativākyaṁ titikkhissaṁ, dussīlo hi bahujjano.
Dhammapada 320
The same idea in other traditions
And let us not be weary in well doing: for in due season we shall reap, if we faint not.
Wait on the LORD; Be strong, and let thy heart take courage; Yea, wait thou for the LORD.
So, verily, with every difficulty, there is relief: Verily, with every difficulty there is relief.
The Master said, "Specious words confound virtue. Want of forbearance in small matters confounds great plans."
By conquering anger he obtains patience; he acquires no Karman productive of anger, and destroys the Karman he had acquired before.
Give me the cup! a voice rings in mine ears / Crying: “Bear patiently the bitter years! / For all thine ills, I send thee heavenly grace. …
Let patience be your purpose in life; implant this within your being. In this way, you will grow into a great river; you will not break off into a tiny stream.
Your business is with action alone; not by any means with fruit. Let not the fruit of action be your motive (to action). Let not your attachment be (fixed) on inaction.