One is related to what Freud calls the Pleasure Principle, the other to what he calls the Reality Principle.

一种是和弗洛伊德所谓的快乐原则有关，另一种则与他所说的现实原则有关。

The ego operates on the reality principle.

自我意识运作的原则是根据现实。

And it works on the "Reality Principle."

它是按照现实原则来运行的。

He’s being a good dad to Jessica and some sort of reality principle to Joey.

他是杰西卡的好爸爸，教育乔伊也是他的事。

This "reality principle" makes sure we meet the needs of the Id, without conflicting with the laws of the Ego.

这种“现实原则”能够确保我们在满足本我需求时，不会和‘自我’发生冲突。