ענפיו מועטין ושורשיו מרובין

...Rabbi Elazar ben Azariah says: If there is no Torah, there is no worldly occupation, if there is no worldly occupation, there is no Torah. If there is no wisdom, there is no fear of God; if there is no fear of God, there is no wisdom. If there is no knowledge, there is no understanding; if there is no understanding, there is no knowledge. If there is no flour, there is no Torah; if there is no Torah, there is no flour. He used to say: Anyone whose wisdom exceeds his deeds, to what is he compared? To a tree who branches are many but whose roots are few; then the winds comes and uproots it and turns it upside down; as it is said; "And he shall be like a lonely juniper tree in the wasteland and shall not see when good comes, but shall inhabit the parched places of the wilderness, a salt filled land which is uninhabitable." [Jeremiah 17:6]. But one whose deeds exceed one's wisdom, what is that person like? Like a tree whose branches are few, but whose roots are many; even if all the winds of the world were to come and blow upon it, they would not move it from its place, as it is said; "He shall be like a tree planted by the waters, which spreads out its roots by the river, and shall not perceive when heat comes, but its leaf shall remain fresh; and it will not be troubled in the year of drought, nor will it cease to bear fruit." [Jeremiah 17:8].