Thoughts as seeds...

GIPHY.com

“As a man is taught, so he believes. Thoughts being things, they may be planted like seeds in the mind of the child and completely dominate his mental content. Given the favourable soil of the will to believe, whether the seed-thoughts be sound or unsound, whether they be of pure superstition or of realizable truth, they take root and flourish, and make the man what he is mentally.”

W.Y. Evans-Wentz