A smattering of everything is worth little. It is a fallacy to suppose that an encyclopaedic knowledge is desirable. The mind is made strong, not through much learning, but by the thorough possession of something.
There's no limit to how much you'll know, depending how far beyond zebra you go.
If you learn a recipe, you can cook the recipe. If you learn the technique, you can cook anything.
Some people drink from the fountain of knowledge, others just gargle.
Learning is the dictionary, but sense the grammar of science.
Reading can be just feeding, but smart reading takes us further. The classroom is one way to go deeper, but we can't stay in school forever.
Nine years of experience is very different from one year of experience, nine times.
Study hard, for the well is deep, and our brains are shallow.
How index-learning turns no student pale, Yet holds the eel of science by the tail!
If you merely focus on what we already know, then it's not revelatory. You may as well just go and watch a documentary or a few videos on Youtube, and you're good.
