Anyone know any famous smart sayings?

Question

like "Every morning in Africa, a gazelle wakes up. It knows it must run faster than the fastest lion or it will be killed. Every morning a lion wakes up. It knows it must outrun the slowest gazelle or it will starve to death. It doesn't matter if you are a lion or a gazelle. When the sun comes up, you better be running"

something like that....i dunno what they are called. But you know what i mean

Answer 1

Well, this might not fit what you're looking for, but I think a smart saying is: "Today only happens once in a lifetime.  Make the most of it"  I found this quote,and some others, at the source below if you're interested.

Answer 2

The face of a child can say it all, especially the mouth part of the face.

Answer 3

I would argue that your example does not constitute a "smart saying."