Study a single sutra by selecting the pada (chapter) and then the sutra (verse).
Source: How to Know God: The Yoga Aphorisms of Patanjali (Swami Prabhavananda, Christopher Isherwood)
These forms of abstention are basic rules of conduct. They must be practiced without any reservations as to time, place, purpose, or caste rules.
Source: English translation from The Heart of Yoga (T.K.V. Desikachar)
When the adoption of these attitudes in our environmental is beyond compromise, regardless of our social, cultural, intellectual or individual station, it approaches irreversibility.
Source: English translation of the Yoga Sutras of Patanjali (Swami Jnaneshvara Bharati)
These codes of self-regulation or restraint become a great vow when they become universal and are not restricted by any consideration of the nature of the kind of living being to whom one is related, nor in any place, time or situation.