Another letter, dated April 28, is interesting as showing that the Prince was beginning to perceive some of the difficulties in his daughter's path: "What you are now living through, observing, and doing, are the most important experiences, impressions and acts of your life, for they are the first of a life independent and responsible to itself. That outside of and in close proximity to your true and tranquillising happiness with dear Fritz your path of life is not wholly smooth, I regard as a most fortunate circumstance for you, inasmuch as it forces you to exercise and strengthen the powers of your mind." Nothing that concerned her but was of moment to her father: "I am delighted to see by your letter that you deliberate gravely upon your budget, and I shall be most happy to look through it, if you send it to me; this is the only way to have a clear idea to one's self of what one has, spends, and ought to spend. As this is a business of which I have had long and frequent experience, I will give you one rule for your guidance in it, namely, to set apart a considerable balance _pour l'imprévu_. This gentleman is the costliest of guests in life, and we shall look very blank if we have nothing to set before him." During the first summer of their married life, the Prince and Princess set up quite a modest establishment at the Castle of Babelsberg, and this made the Princess very happy. Seated on a declivity of a richly wooded hill, about three miles from Potsdam, and looking down upon a fine expanse of water, the little Castle of Babelsberg commands a charming view of the surrounding country. "Everything there," wrote Queen Victoria on her first visit, "is very small, a Gothic _bijou_, full of furniture, and flowers (creepers), which they arrange very prettily round screens, and lamps, and pictures. There are many irregular turrets and towers and steps." It was at Babelsberg that the Princess Royal began to try and see something of the intellectual and artistic world of Berlin. Neither the husband nor the wife was under the dominion of the class and caste prejudices which even now are so astonishing a feature of German social life, and which were then even more powerful and far-reaching. That the Prince and Princess should appear actually to enjoy the society of mere painters and writers and scientists, whether they occupied any official positions or not, seemed extraordinary and highly improper to the whole bureaucratic element of Berlin, and must, we can well imagine, have seriously offended the Prince's father.