The greatest potential for growth and self-realisation exists in the second half of life.
The most damaging forms of intolerance are connected with religious, racial and political differences of opinion.
You will attract to yourself people who harmonize with your own philosophy of life, whether you wish it or not.
You will never be greater than the thoughts that dominate your mind
Opportunity often comes disguised in the form of misfortune, or temporary defeat.
The man who does more than he is paid for will soon be paid for more than he does.
The starting point of all achievement is desire.
There is a way that a younger person can accept the inevitable problem that they're going to die, whereas somebody a little bit older might be overcome.
Beware of seriousness: it is a form of stupidity
The brighter the light, the darker the shadow.
Our inventions are wont to be pretty toys, which distract our attention from serious things. They are but improved means to an unimproved end, an end which it was already but too easy to arrive at; as railroads lead to Boston or New York. We are in great haste to construct a magnetic telegraph from Maine to Texas; but Maine and Texas, it may be, have nothing important to communicate.