The same thing can be both good and bad. Whenever you speak of good, bad is also present. The world is a mixture of both. There is not good without bad. They are both sides of the same coin. Both are necessary. We have been given free will and discriminating capacity to select what is beneficial to us and to avoid what is detrimental to us. Even Cobra poison can be used as medicine.

The five points of yama, together with the five points of niyama, remind us of the Ten Commandments of the Christtian and Jewish faiths, as well as of the ten virtues of Buddhism. In fact, there is no religion without these moral or ethical codes. All spiritual life should be based on these things. They are the foundation stones without which we can never build anything lasting. (127)

When even one virtue becomes our nature, the mind becomes clean and tranquil. Then there is no need to practice meditation; we will automatically be meditating always. (151)

There is one Cosmic Essence, all-pervading, all-knowing, all-powerful. This nameless formless essence can be approached by any name, any form, any symbol that suites the taste of the individual. Follow your religion, but try to understand the real purpose behind all of the rituals and traditions, and experience that Oneness.

There’s no value in digging shallow wells in a hundred places. Decide on one place and dig deep. Even if you encounter a rock, use dynamite and keep going down. If you leave that to dig another well, all the first effort is wasted and there is no proof you won’t hit rock again. (52)

[O]ur own bodies are changing every second. Yet we take the body to be our Self; and, speaking in terms of it, we say, “I am hungry” or “I am lame”; “I am black” or “I am white.” These are all just the conditions of the body. We touch the truth when we say, “My body aches,” implying the body belongs to us and that therefore we are not that. (87)

The purification of the mind is very necessary. (72)