In acquiring, investing, reinvesting, exchanging, retaining, selling and managing property for the benefit of another, fiduciaries shall exercise the judgment and care under the circumstances then prevailing, which men of prudence, discretion and intelligence exercise in the management of their affairs, not in regard to speculation but in regard to the permanent disposition of their funds, considering the probable income as well as the probable safety of their capital. Within the limitations of the foregoing standard, fiduciaries may acquire and retain every kind of property, real, personal or mixed, and every kind of investment, specifically including but not by way of limitation, bonds, debentures and other corporate obligations, and stocks, preferred or common, which men of prudence, discretion and intelligence acquire or retain for their own account, and within the limitations of the foregoing standard, fiduciaries may retain property properly acquired, without limitation as to time and without regard to its suitability for original purchase.