The six causes as extracted from the six Darshan Shashtras:-

1. Nothing in this world can be produced without proper application." Mimansa"
2. "Nothing can be done or made without the expenditure of time." Vaisheshika
3. "Nothing in this world can be produced without the material cause." Niyaya
4. "Nothing can be made without the requisite skill, knowledge and thought." Yoga
5. "Nothing can be made without the definite combination of atoms." Sankhaya
6. "Nothing can be made without a Maker." Vedanta

This shows that the creation of the world or anything created even by man can never come into being without these six causes.