"Mr Children Tomorrow Never Knows" 是由 John Lennon 和 Paul McCartney 共同創作的一首歌曲，收錄於披頭士樂隊（The Beatles）的專輯《Rubber Soul》。以下是這首歌的歌詞：
Mr. Children Tomorrow Never Knows
Oh, Mr. Children, they never know
They never know what they gonna do
Oh, Mr. Children, they never know
They never know what they gonna do
Everybody's talking 'bout a new day
A new day coming, oh, what a day
And I don't know what they gonna do
And I don't know what they gonna do
Oh, Mr. Children, they're so untrue
They're so untrue, they're so untrue
Oh, Mr. Children, they're so untrue
They're so untrue, they're so untrue
Everybody's talking 'bout a new day
A new day coming, oh, what a day
And I don't know what they gonna do
And I don't know what they gonna do
Oh, Mr. Children, you know you're wrong
You know you're wrong, oh yeah, yeah yeah
But they keep on, oh they keep on spinning
They keep on spinning and never know
They never know
Now let me tell you 'bout my own days here
What it was like and where it's been for me
Everybody came here just to feel high
Just to feel high and never know what they gonna do
They never know what they gonna do
Mr. Children, you know you're wrong
You know you're wrong, yeah yeah yeah yeah
But you keep on spinning and never know
You never know
以上是這首歌的部分歌詞，由於歌曲的完整版本可能包含更多的歌詞和表達方式，因此僅供參考。