find按name搜索无法匹配出文件，如下，不加''一个文件也匹配不出来。加了''才能匹配出文件。请问是因为什么？

[root@vm01 ~]# find /etc -name *init*
[root@vm01 ~]# find /etc -name '*init*'
/etc/security/namespace.init
/etc/gdbinit
/etc/gdbinit.d
/etc/selinux/targeted/contexts/initrc_context
/etc/selinux/targeted/active/modules/100/init
/etc/X11/xinit
/etc/X11/xinit/xinitrc
/etc/X11/xinit/xinitrc-common
/etc/X11/xinit/xinitrc.d
/etc/sysconfig/init
/etc/sysconfig/network-scripts/init.ipv6-global
/etc/xdg/autostart/gnome-initial-setup-first-login.desktop
/etc/xdg/autostart/gnome-initial-setup-copy-worker.desktop
/etc/init.d
/etc/rc.d/init.d
/etc/systemd/system/multi-user.target.wants/initial-setup-reconfiguration.service
/etc/systemd/system/graphical.target.wants/initial-setup-reconfiguration.service
/etc/systemd/system/sysinit.target.wants
/etc/inittab
/etc/iscsi/initiatorname.iscsi
/etc/festival/siteinit.scm