"Si vous voulez garder un secret vous devez aussi le cacher à vous-même"
— George Orwell
Simplified Meaning:
If you want to make sure no one else knows your secret, you also need to avoid thinking about it too much. This means that it's not enough to keep it from other people; you have to be careful not to remind yourself of it often. For example, if someone knows they are planning a surprise party for a friend, they shouldn't keep looking at the invitation list or party plans out in the open or talk to themselves about it. They should try to act as if the secret doesn’t exist in their mind. By doing this, they don’t accidentally share hints or give clues away. This way, even if someone tries to find out the secret, they are less likely to succeed, because the person with the secret keeps it deeply hidden. This advice helps in situations where it's really important that the secret stays unknown, like in surprise events or sensitive information at work.