Verb
examine so as to determine accuracy, quality, or condition
investigate scientifically
Source: WordNetIf you look into your own heart, you find nothing wrong there, what is there to fear. Confucius
Your vision will become clear only when you can look into your own heart. Who looks outside, dreams; who looks inside, awakes. Carl Jung
You look at any poetic creature: muslin, ether, demigoddess, millions of delights; then you look into the soul and find the most ordinary crocodile! Anton Chekhov
When a needle falls into a deep well, many people will look into the well, but few will be ready to go down after it. Guinea Proverb
It is impossible to go and look into the stomach of another. Togolese Proverb
It's no shame to look into the warm spring sun and regret a lost limb. Norwegian Proverb