Success or failure, gain or loss, depend upon our own exertions

The incomparable Creator hath created all men from one same substance, and hath exalted their reality above the rest of His creatures. Success or failure, gain or loss, must, therefore, depend upon man’s own exertions. The more he striveth, the greater will be his progress.

Baha'u'llah, Gleanings from the Writings of Baha'u'llah, p. 81