"How can you consider flower power outdated? The essence of my lyrics is the desire for peace and harmony. That's all anyone has ever wanted. How could it become outdated?"

This quote by Robert Plant talks to the timelessness of the message of peace and consistency that is frequently related to the expression "flower power". He is recommending that the desire for peace and harmony is something that has actually been around since the beginning of time and will never ever end up being out-of-date. He is likewise suggesting that the phrase "flower power" is simply a representation of this desire and need to not be seen as something that is outdated. He is suggesting that the message of peace and consistency is something that will constantly matter and must not be forgotten. In essence, he is saying that the phrase "flower power" is simply a symbol of something that will never ever end up being outdated.