Money is like an arm or leg - use it or lose it.
Nobody can think straight who does not work. Idleness warps the mind.
There is no disgrace in honest failure; there is disgrace in fearing to fail
The only motive that can keep politics pure is the motive of doing good for one's country and its people.
Exercise is bunk. If you are healthy, you don't need it: if you are sick you should not take it.
Anyone who stops learning is old โ whether this happens at twenty or at eighty. Anyone who keeps on learning not only remains young but becomes constantly more valuable โ regardless of physical capacity.