The aspirant always has to be in readiness to serve the cause of humanity. He need not apply himself to any type of work irrespective of his capacities. He has to select that type of work which he is qualified to do by virtue of his individual aptitude and abilities. But whatever service he can render by virtue of his capacities, he renders it even when the circumstances are most trying. The ordeals through which he may have to pass are many, but his determination to serve whenever possible must remain unshaken.
-Discourses 7th Ed. p360