The happiness of a man in this life does not consist in the absence but in the mastery of his passions.
The mastery of nature is vainly believed to be an adequate substitute for self mastery.
Mastery passes often for egotism.
Do not fall prey to the false belief that mastery and domination are synonymous with manliness.
Gather in your resources, rally all your faculties, marshal all your energies, focus all your capacities upon mastery of at least one field of endeavor.
Order and simplification are the first steps toward the mastery of a subject.
