The Bhagavath Gita covers most practical things in life. The theory evolution, food chain is very much described in the Upanishads and aanandavalli in Thaithriyopanishad describes the food chain on earth in its whole. Most aspects of life are described in the ancient Hindu scriptures. Here are 10 Enlighting Verses from Hindu Scriptures.
1. No one can push a boulder away while standing on it; you cannot be free from anxiety while all the entrances through which it sneaks in are open. – Atharvana Veda
2. The stalks of water-flowers are proportionate to the depth of water; so is humans greatness proportionate to their minds (Knowledge). – Tirukural
3. Delusion arises from anger. The mind is bewildered by delusion. Reasoning is destroyed when the mind is bewildered. One falls down when reasoning is destroyed. – Bhagvat Gita
4. (Lead Us) From the Unreal To the Real,
From Darkness To Light,
From Death To Immortality,
Peace Peace Peace. – Brihadaranyaka Upanishad
5. Thus occupied by many egoistic ideas, deluded, addicted to the gratification of desire (doing works, but doing them wrongly, acting mightily, but for themselves, for desire, for enjoyment, not for God in themselves and God in man), they fall into the unclean hell of their own evil. — Bhagvat Gita
6. “Who really knows?
Who will here proclaim it?
Whence was it produced? Whence is this creation?
The gods came afterwards, with the creation of this universe.
Who then knows whence it has arisen?”
Whence this creation has arisen
perhaps it formed itself, or perhaps it did not
the One who looks down on it,
in the highest heaven, only He knows
or perhaps even He does not know. — Rig Veda
7. Let the fruit not be the purpose of your actions, and therefore you won’t be attached to not doing your duty. You have the right to perform your actions, but you are not entitled to the fruits of the actions. — Bhagvat Gita
8..There is no happiness for him who does not travel, Rohita!
Thus we have heard. Living in the society of men, the best man becomes a sinner… therefore, wander!… The fortune of him who is sitting, sits; it rises when he rises; it sleeps when he sleeps; it moves when he moves. Therefore, wander!” — Rig Veda
9. (There is) just one divinity, manifestly hidden everywhere
Pervading everything, the soul of every living creature.
The one that directs the actions of all and lives across all times.
Witness to everything, pure and perfect, devoid of all (worldly) qualities and attributes. –Shvetashwataro Upanishad
10. Knowledge increases his thinking capabilities and helps him in getting new and innovative ideas.After implementing those ideas successfully he earns wealth. – Rig Veda