You can download language packs from the Microsoft Download Center. If you change the language to, say, Japanese you are presented with two download links at the bottom for the Japanese language pack. This language pack includes user interface changes for Japanese as well as proofing tools, OCR support, and fonts.

Once the pack is downloaded just run it and you can customize want you want to install. Since I am not interested in the UI aspects of the pack, I selected the top part and toggled selection for all to not install. Then for the entries 国際フォント (international fonts) and 文章校正ツール (proofing tools) I made sure to install everything. 文章校正ツール includes both 日本語用校正ツール and 英語用校正ツール and I guess you can most likely skip 英語用校正ツール since it is already installed. 国際フォント includes 標準フォント (standards font), which I am guessing is related to JIS X standards for font encodings.

Basic Windows 7 has 134 fonts installed. A basic English Office 2010 install increases this to 198 fonts installed. Installing the Japanese language pack proofing tools with fonts brings this to 228 fonts installed.

If you press the expansion arrow at the bottom-right of the Home part of the ribbon (or press CTRL-D) you will get the Font dialog. If you select the Advanced tab you can turn on features such as OpenType ligatures. This will mean that with text such as ‘fl’ or ‘ffi’ certain parts of the letters will connect instead of showing white space between the letters. This is the same technique used in printed media such as books.

Update: Michael Hendry was kind enough to point out that I was mistaking 標準 with (standard/default) with 基準 (standards/JIS/ISO).

One can take a trained elephant even into a crowd. The king himself will ride a trained elephant. He who is disciplined is the best of men, since he can bear criticism. (馴らされた象は、戦場にも連れて行かれ、王の乗りものとなる。世のそしりを忍び、自らをおさめた者は、人々の中にあっても最上の者である。)

Trained mules are excellent, and so are thoroughbred horses from the Sindh, and so are great battle elephants, but more excellent than them all is a disciplined man. (馴らされた騾馬は良い。インダス河のほとりの血統よき馬も良い。クンジャラという名の大きな象も良い。しかし自己をととのえた人はそれらよりもすぐれている。)

There is no reaching the unattainable with mounts like these, but with himself well under control a disciplined man can get there. (何となれば、これらの乗物によっては未到の地(ニルヴァーナ)に行くことはできない。そこへは、慎しみある人が、おのれ自らをよくととのえておもむく。)

Dhammapalo, the elephant, is hard to control in rut. Even when tied up, he refuses his food. The great tusker is thinking of the elephant forest. (「財を守る者」という名の象は、発情期にこめかみから液汁をしたたらせて強暴になっているときは、いかんとも制し難い。捕らえられると、一口の食物も食べない。象は象の林を慕っている。)

Then a man is a lie-abed and over-eats, a lazy person who wallows in sleep like a great over-fed hog, a fool like that will be reborn time after time. (大食いをして、眠りをこのみ、ころげまわって寝て、まどろんでいる愚鈍な人は、大きな豚のように糧を食べて肥り、くりかえし母胎に入って(迷いの生存をつづける)。)

My mind used formerly to go off wandering wherever it felt like, following its own inclination, but today I shall control it carefully, like a mahout does a rutting elephant. (この心は、以前には、望むがままに、欲するがままに、快きがままに、さすらっていた。今やわたくしはその心をすっかり抑制しよう、＿＿＿象使いが鉤をもって、発情期に狂う象を全くおさえつけるように。)

Take pleasure in being careful. Guard your mind well. Extricate yourself from the mire, like a great tusker sunk in the mud. (つとめはげむのを楽しめ。おのれの心を護れ。自己を難処から救い出せ。＿＿＿泥沼に落ち込んだ象のように。)

If you find an intelligent companion, a wise and well-behaved person going the same way as yourself, then go along with him, overcoming all dangers, pleased at heart and mindful. (もしも思慮深く聡明でまじめな生活をしている人を伴侶として共に歩むことができるならば、あらゆる危険困難に打ち克って、こころ喜び、念いをおちつけて、ともに歩め。)

But if you do not find an intelligent companion, a wise and well-behaved person going the same way as yourself, then go on your way alone, like a king abandoning a conquered kingdom, or like a great elephant in the deep forest. (しかし、もしも思慮深く聡明でまじめな生活をしている人を伴侶として共に歩むことができないならば、国を捨てた国王のように、また林の中の象のように、ひとり歩め。)

It is better to travel alone. There is no companionship with a fool. Go on your way alone and commit no evil, without cares like a great elephant in the deep forest. (愚かな者を道伴れとするな。独りで行くほうがよい。孤独（ひとり）で歩め。悪いことをするな。求めるところは少なくあれ。＿＿＿林の中にいる象のように。)

It is good to have companions when occasion arises, and it is good to be contented with whatever comes. Merit is good at the close of life, and the elimination of all suffering is good. (事がおこったときに、友だちのあるのは楽しい。(大きかろうとも、小さかろうとも)、どんなことにでも満足するのは楽しい。善いことをしておけば、命の終るときに楽しい。(悪いことをしなかったので)、あらゆる苦しみ(の報い)を除くことは楽しい。)

Good is filial devotion to one’s mother in the world, and devotion to one’s father is good. It is good to be a sanyasi in the world and to be a brahmin too. (世に母を敬うことは楽しい。また父を敬うことは楽しい。世に修行者を敬うことは楽しい。世にバラモンを敬うことは楽しい。)

Good is good behaviour up to old age, good is firmly established faith, good is the acquisition of understanding, and abstention from evil is good. (老いた日に至るまで戒しめをたもつことは楽しい。信仰が確立していることは楽しい。明らかな知慧を体得することは楽しい。もろもろの悪事をなさないことは楽しい。)

English translation by John Richards.
Japanese translation by 中村元 (NAKAMURA Hajime)