Here's what the Buddha states in regards to the importance of skepticism.

This is how the Buddha replied to the villagers of Kalama, when they asked him how to evaluate philosophy and develop a healthy, skeptical attitude:

Kalama Sutta
  • Do not believe just because it is a tradition maintained by oral repetition.
  • Do not believe just because it is an unbroken succession of practice.
  • Do not believe merely because it is hearsay.
  • Do not believe just because it is in the scriptures.
  • Do not believe just because it fits with one's point of view.
  • Do not believe just because it is correct on the ground of metaphysical theories.
  • Do not believe just because it appeals to one's consideration.
  • Do not believe just because it agrees with one's opinions and theories.
  • Do not believe just because the speaker appears believable.
  • Do not believe just because the speaker is our teacher.

Kalamas, whenever you realize by yourselves what is unwholesome, harmful or is condemned by wise people, and whoever fully undertake or observe this, they will lead to uselessness or suffering, and you should abandon them.

Kalamas, whenever you realize by yourselves what is wholesome, not harmful or is admired by wise people, and whoever fully undertake or observe this, they will lead to usefulness or happiness, you should undertake them.