Should princes be concerned with behaving ethically or practically

According to Machiavelli's the Prince, princes should act in a practical manner. Machiavelli produced a practical guide to the arts of statecraft, which served the practical needs of the powerful families that emerged in the Italian  city-states during the Renaissance. Statecraft involved carefully crafted approaches to the realistic conditions faced by rulers. It was driven less by emotion or morality but reason.

peace keepers

idealism to be spread

riches kept

the answer is: must pay taxes on profits

since it is considered as a part of your income, profits from investments is eligible for tax payment.

the tax from your investment could be influenced by how long you decided to sell it. united states promotes keeping your investment for long term period. so, the tax rate for investments that you sell in less than one year is typically higher compared to investments that you sell in more than one year period.