A man can't retire his experience.
All economic movements, by their very nature, are motivated by crowd psychology.
Don't try to be a jack of all investments. Stick to the field you know best.
Now is always the hardest time to invest.
Whatever task you undertake, do it with all your heart and soul. Always be courteous, never be discouraged. Beware of him who promises something for nothing. Do not blame anybody for your mistakes and failures. Do not look for approval except the consciousness of doing your best.
Society can progress if men's labors show a profit - if they yield more than is put in. To produce at a loss must leave less for all to share.