There are too many accidents ...

There are too many accidents that can befall life on a single planet.
There are too many accidents that can befall life on a single planet.

More phrases

An "I know what I like" mentality is hard to shake, but of course appreciation has space for being challenged.
 Ryan Gander
SHUCHU RYOKU - Focus all your energy to one point.
 Gozo Shioda
The warrior knows that the most important words in all languages are the small words. Yes. Love. God. They are words that are easy enough to say and which fill vast empty spaces.
The Warrior lives a life full of adventure, living on the edge of opportunity. Life on the edge keeps him in a space of heightened awareness and totally in the moment; therefore no matter what comes his way he is always prepared.
 James Arthur Ray
Seeing energy as it flows is an imperious need on the path of knowledge. Ultimately, all the effort of sorcerers is guided to that end. It is not enough for a warrior to know that the universe is energy; he has to verify it for himself.

Quotes from the same author

Look up at the stars and not down at your feet. Try to make sense of what you see, and wonder about what makes the universe exist. Be curious.
I think the next [21st] century will be the century of complexity. We have already discovered the basic laws that govern matter and understand all the normal situations. We don't know how the laws fit together, and what happens under extreme conditions. But I expect we will find a complete unified theory sometime this century. The is no limit to the complexity that we can build using those basic laws.
Whether you want to uncover the secrets of the universe, or you just want to pursue a career in the 21st century, basic computer programming is an essential skill to learn
Issuing an insurance policy against abduction by aliens seems a pretty safe bet.
Intelligence is the ability to adapt to change.