Perseverance is an active patience, a patience that marches on.
[CWM2, 2:198]
When you have started, you must go to the very end. Sometimes, you see, to people who come to me with enthusiasm I say, “Think a little, it is not an easy path, you will need time, you will need patience. You will need much endurance, much perseverance and courage and an untiring goodwill. Look and see if you are capable of having all this, and then start. But once you have started, it is finished, there is no going back any more; you must go to the very end.
[CWM2, 6:441]
And the most essential quality is perseverance, endurance, and a… what shall I call it?—a kind of inner good humour which helps you not to get discouraged, not to become sad, and to face all difficulties with a smile.
[CWM2, 08:23]
For a happy and effective life, the essentials are sincerity, humility, perseverance and an insatiable thirst for progress.
[CWM2, 12:123]
Perseverance: the decision to go to the very end.
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Perseverance is patience in action.
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Perseverance breaks down all obstacles.
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Persevere and all obstacles will be conquered.
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Persevere—it is the surest way to success. What you have not been able to achieve in you last year, you will do this year.
[CWM2, 14:162]
 
What you are not able to do today, you will achieve tomorrow. Persevere and you shall conquer.
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It is by persevering that one conquers difficulties, not by running away from them.One who perseveres is sure to triumph. Victory goes to the most enduring. Always do your best and the Lord will take care of the results.
[CWM2, 14:163]
 
What is obstinacy? How can one use it best?
It is the wrong use of a great quality—perseverance.
Make a good use of it and it will be all right.
Be obstinate in your effort towards progress, and your obstinacy will become useful.
[CWM2, 14:163]
 
For each person the way differs in its details, but sincerity and perseverance are equally indispensable for all.
[CWM2, 16:294]