使用了强调句结构 'It is... that...'，强调了 'visiting friends' 这一主语对 'add splendor' 这一动作的决定性作用。
A person should never rely on their own 100% effort, but rather on the 1% effort of 100 people. — Bill Gates
A broken friendship, though it can be restored, never reaches the same level of intimacy as before. — T. Fuller
The road to success is always paved with broken friendships. — Wells
One of the main utilities of friendship is to allow the venting and release of resentment and depression, which are emotions caused by various circumstances. — Bacon
Old trees are best for burning, old horses best for riding, old books best for reading, old wine best for drinking, and old friends most trustworthy. — Wright
It is the visiting friends that add splendor to the household. — Emerson
When poverty quietly enters, false friendship leaps out of the window and flees in panic. — Mill
True friendship is never without ripples. — Madame de Sévigné
We think about how to preserve health, how to accumulate wealth, how to reinforce the roof, and how to prepare clothes; but the wise person thinks about how to choose the most precious thing — a friend. — Emerson
Friendship in past life has been like a bright lamp, illuminating my soul and adding a little color to my existence. — Ba Jin
一个人永远不要靠自己一个人花100%的力量，而要靠100个人花每个人1%的力量。——比尔·盖茨
破裂的友谊虽然能恢复，但却再也达不到亲密无间的程度了。——托·富勒
飞黄腾达的路上一定点缀着破碎的友谊。——威尔斯
友谊的主要效用之一就在使人心中的愤懑抑郁之气得以宣泄弛放，这些不平凡之气是各种的情感都可以引起的。——培根
老的树最好烧，老的马最好骑，老的书最好读，老的酒最好喝，老的朋友最可信赖。——莱特
为门庭增添光彩的是来做客的朋友。——爱默生
当穷神悄然进来，虚伪的友情就越窗仓皇而且逃。——米尔
真正的友谊从来不会平静无波。——赛维涅夫人
我们想的是如何养生，如何聚财，如何加固屋顶，如何备齐衣衫;而聪明人考虑的却是怎样选择最宝贵的东西——朋友。——爱默生
友情在过去的生活里，就象一盏明灯，照彻了我的灵魂，使我的生存有了一点点光彩。——巴金